Silencing the Guns in Syria’s Idlib

With the Syrian regime’s offensive in Idlib paused, the time is now for a deal sparing the rebellion’s last stronghold the full wrath of reconquest. The parties should pursue an improved ceasefire including the regime, Russia, Turkey and the Islamist militants entrenched in the province.

What’s new? A Russian-backed Syrian regime offensive against rebel-held Idlib halted when Russia and Turkey negotiated a ceasefire in March. Turkey is sending reinforcements, signalling a military response to what it deems a national security threat. For now, this step may dissuade Russia from resuming the offensive, but the standoff appears untenable.

Why does it matter? Successive Russian-Turkish ceasefires in Idlib have collapsed over incompatible objectives, diverging interpretations and exclusion of the dominant rebel group, Hei’at Tahrir al-Sham (HTS), which is UN-sanctioned and considered by Russia and others a terrorist organisation. A Russian-backed regime offensive to retake Idlib likely would result in humanitarian catastrophe.

What should be done? All actors should seek a more sustainable ceasefire – optimally including HTS, notwithstanding legitimate concerns about the group – that avoids the high military, political and humanitarian price of another offensive. Turkey should push HTS to continue distancing itself from transnational militancy and display greater tolerance for political and religious pluralism.

Executive Summary
” To prevent further escalation, Moscow and Ankara should negotiate a more durable ceasefire that goes some way toward addressing both countries’ core concerns. “

Idlib, the last redoubt of Syrian rebels fighting President Bashar al-Assad’s regime, presents an international political conundrum that threatens to become a far greater humanitarian tragedy. A Russian-backed regime offensive has squeezed the rebels and displaced hundreds of thousands of terrified civilians, many crowding at the Turkish border. Turkish-Russian ceasefires have broken down time and again. The latest one, in March, while holding, bears all the flaws of its predecessors and may therefore also erode. To prevent further escalation, Moscow and Ankara should negotiate a more durable ceasefire that goes some way toward addressing both countries’ core concerns. This step is all the more urgent because of the possibly imminent spread of COVID-19 in Idlib, which can be contained only through concerted international action at a time of relative calm. Idlib’s health care sector is all but destroyed as a result of the latest offensive, and an outbreak in this densely populated province could prove disastrous.

The failure of successive Russia-Turkey ceasefires, which were rooted in the trilateral Astana process launched with Iran in 2017, partly derives from the two sides’ contradictory interpretations of their commitments. Those differences in turn reflect the two countries’ opposing positions on Idlib’s future. The latest deal suspends but does not address the differences: while Turkey seeks to keep the Syrian regime out of Idlib pending a comprehensive political settlement of the Syrian conflict, Russia supports Damascus in the objective of reclaiming all the country’s territory – through negotiated deals if possible, or by force if the regime deems it necessary.

The Russian-Turkish deals also have recurrently stumbled over the question of Hei’at Tahrir al-Sham (HTS), a jihadist group that dominates the area and that is not covered by the ceasefires. Russia has made clear that it expects Turkey to contain, police and eventually eliminate the group. But Ankara may have concluded that HTS is too strong and locally rooted to eradicate militarily without incurring a large human toll and sending a new wave of refugees to the Turkish border. It may also be disinclined to weaken the most powerful armed group in Idlib, thereby enabling a regime offensive. Russia has pointed in particular to HTS’s inclusion in the UN Security Council’s sanctions list of entities affiliated with al-Qaeda or the Islamic State, as well as its alleged drone attacks on Russia’s Hmeimim air base on Syria’s Mediterranean coast, as reasons for backing repeated offensives in Idlib. Because Russia enjoys the upper hand militarily over the rebels and could give the regime the kind of military support it would need to press for total victory, it has repeatedly been tempted to push in that direction.

” The political and military price of a new offensive for both Moscow and Damascus could be high. “

Yet the political and military price of such an offensive for both Moscow and Damascus could be high. In addition to significantly worsening a humanitarian crisis, it could trigger even greater Turkish involvement: in the last three months, Ankara has stepped up both its own military role and its support for the main rebel alliance it backs in Idlib, the National Liberation Front, signalling its willingness to invest in Idlib in order to block regime advances and its ability to raise the cost of a new regime offensive. Developments earlier this year suggest that while the Syrian army, reorganised, re-equipped and backed by Russian airpower, in theory could overwhelm Idlib’s rebels, it would face real obstacles now that Turkey has deployed advanced drones and surface-to-air missiles. Ankara has qualitatively enhanced its Idlib intervention to preserve what it perceives as its interests and its ability to counter-attack regime forces. Even if a regime offensive achieved significant territorial gains, it would therefore likely come at a high cost in manpower and materiel to forces already stretched thin.

Perhaps most important for Moscow, a Syrian offensive it backs could jeopardise its relationship with Ankara, particularly if regime forces push into densely populated areas such as Idlib city, fomenting mass civilian flight toward the Turkish border. Moreover, a violent takeover of Idlib could bring new security challenges. A large portion of the thousands of fighters now bottled up there would likely flee; many might shift focus toward a broader asymmetric insurgency against regime forces, while some foreign jihadists might seek their way home, including to countries in the post-Soviet space.

There is an alternative scenario. Although it may not return Idlib to regime control in the short to medium term, it would both address Russia’s interest in suppressing rebel capacity to strike Russian military assets from Idlib and preserve Moscow’s strategically important relationship with Ankara. This scenario would require Moscow and Ankara to reach a more sustainable ceasefire and in particular address the role of HTS – which controls Idlib and therefore is pivotal to the success of any agreement – in a realistic and pragmatic way.

Since 2016, there have been signs that HTS is in the process of morphing from an al-Qaeda affiliate with a Salafi-jihadist orientation and membership (calling itself Jabhat al-Nusra) into a Syrian-dominated force that, despite having a hardline Islamist orientation, being regarded by many as repressive and intolerant and continuing to fight the Assad regime, is shedding its transnational goals in favour of a local state-building project. Whether HTS can transform itself into a primarily political actor that becomes part of Syria’s post-conflict order in Idlib is far from clear.
” Signs of pragmatism within HTS, even if driven by tactical considerations deriving from military pressure, are worth testing. “

Yet signs of pragmatism within the group, even if driven by tactical considerations deriving from military pressure, are worth testing. A shift by HTS away from transnational militancy would benefit foreign governments concerned about attacks emanating from Idlib, while the province’s long-suffering inhabitants would gain were the group more tolerant of pluralism and dissent. HTS’s transformation, however genuine, is unlikely to convince Russia or the regime, but its recent evolution does suggest that it may be ready to enter transactional ceasefire agreements that might at least address Moscow’s concern about alleged attacks on Hmeimim air base. Turkey, potentially together with other foreign powers, could set conditions for HTS that, if met by the group, could enable HTS’s inclusion in ceasefire agreements, even if indirectly.

The expected humanitarian catastrophe that would follow an all-out assault on Idlib, and the associated political costs, mean that exploring this alternative is the least bad option for all relevant actors. The additional threat that COVID-19 poses to Idlib’s over three million inhabitants, and in particular to the tens of thousands of displaced civilians living in makeshift camps, underlines the urgency for all parties to achieve a more durable ceasefire that could allow for a coordinated international humanitarian response.

Idlib/Istanbul/Brussels, 15 May 2020
I. Introduction

Backed by Russian airpower, the Syrian regime has pursued an incremental military strategy for reclaiming the rebel-held north west. This effort escalated in April 2019, when regime forces launched what Russian officials described at the time as a “limited” offensive geared toward pushing back opposition-affiliated fighters from their positions in northern Hama and southern Idlib provinces.
By March 2020, it had left over a million Syrians displaced. Russian officials suggested that their immediate priority was to stop frequent drone attacks on Russia’s assets at the Hmeimim air base, on the Mediterranean coast south east of Latakia, by pushing rebel groups further northward into Idlib and restoring regime control over the area’s two major highways. For its part, Damascus reiterated its intent to retake all the rebel-held areas, including Idlib.

Regime forces first advanced eastward on towns and villages in northern Hama, including Qalaat al-Madiq, in May 2019. In August, they began pushing westward, capturing Khan Sheikhoun on the M5 Damascus-Aleppo highway. This manoeuvre allowed the regime to cut northern Hama off from the southern Idlib countryside, forcing rebels in the former to withdraw to avoid becoming encircled.
Regime forces proceeded in December toward larger towns such as Maarat al-Numan and Saraqeb, and by late February had taken control of the full length of the M5, along with additional areas extending up to 12km west of the highway. The offensive’s direction, before it was halted by the 5 March ceasefire, implied that Damascus’ next objectives were likely the towns of Ariha and Jisr al-Shughour, allowing the regime to seize the M4 Aleppo-Latakia highway, which passes some 10km south of Idlib city. Were this move to succeed, the regime would regain control of more than half of the remaining rebel-held areas in north-western Syria.

The third line of defence for rebels in southern Idlib. CRISIS GROUP/Dareen Khalifa
” Russian airpower has compensated for the regime’s relative weakness in ground warfare but has simultaneously significantly increased the human toll. “

Russian airpower has compensated for the regime’s relative weakness in ground warfare but has simultaneously significantly increased the human toll.
The combined air and artillery attacks ravaged numerous towns and villages, including Qalaat al-Madiq, Kafr Nabudah, Khan Sheikhoun, Maaret al-Numan and Saraqeb, sending tens of thousands of civilians fleeing toward the northern parts of Idlib. Crisis Group’s visits to the area showed the extent to which air and artillery strikes had targeted and destroyed hospitals, bakeries, schools and vital infrastructure in an apparent attempt to put pressure on the civilian population and the local administration. At least 1,700 civilians were reportedly killed in these strikes. The head of the UN Office for the Coordination of Humanitarian Affairs (UN OCHA), Mark Lowcock, declared in mid-February 2020 that the fighting in the north had reached a “horrifying level”, estimating that 940,000 civilians had been forced to flee their homes since early December 2019.

With nearly 3.5 million Syrians already in Turkey and popular resentment of the refugees on the rise, Ankara doubled down on its military presence in Idlib in early February, sending major reinforcements to its outposts there in an effort to stymie the regime advance.
But Turkish soldiers arrived in Idlib without a clear mandate to engage in combat, except in self-defence, and quickly became a target of Russian and regime attacks. By official Turkish accounts, Turkey lost 53 of its soldiers during February.

Turkey responded swiftly and vehemently, with armed and unarmed drones, causing significant losses to regime manpower, armour and artillery. For the regime, it was the second highest toll in a single month since the war began.
The counter-attack stopped the regime offensive in its tracks and even reversed some of its gains. It also appears to have contributed to bringing Russia back to the negotiating table, resulting in a Turkish-Russian summit that produced a renewed ceasefire in Idlib, albeit on terms more favourable to Moscow.

On 5 March, Presidents Recep Tayyip Erdoğan and Vladimir Putin agreed on a new cessation of hostilities in Idlib, establishing a “security corridor” extending 6km on each side of the M4 Aleppo-Latakia highway, an area under rebel control, to be monitored by joint Russian-Turkish patrols. The agreement froze the conflict along the new front line, giving the regime control over many areas it had retaken in the latest offensive.

This outcome gave Turkey less than it hoped for, namely restoration of the demarcation line to outside the M4 as well as the M5 Damascus-Aleppo highways (ie, back to the initial lines set out in the 2018 Sochi Memorandum of Understanding, discussed below) and conclusion of a long-term agreement that would last until a political solution is reached. Still, Ankara achieved more than the situation on the ground had suggested it would a couple of weeks earlier, when the regime was advancing rapidly toward Ariha and the M4.

The first joint patrol took place on 15 March, but it had to be aborted midway through due to local protests.
Subsequent attempts by Russian military police to take part in the patrols were also blocked by locals staging sit-ins, who let through only Turkish military vehicles.

” Idlib’s fragile ceasefire remains at great risk of falling apart. “

Idlib’s fragile ceasefire remains at great risk of falling apart. As in the past, Russia’s decision whether to provide air support and other backing to regime forces will determine a renewed regime offensive’s viability. At the same time, Turkey has reinforced its own presence since the latest ceasefire came into effect, continuously injecting armour, artillery and personnel into Idlib.
Turkish officials continue to publicly and privately state their readiness to re-escalate in response to what they contend is a national security threat.

While a fortified Turkish presence may dissuade Russia from resuming the offensive, the current situation appears untenable as long as the two sides fail to address the ceasefire’s weaknesses. A direct Russian-Turkish confrontation in this densely populated pocket of Syria is possible.

This report analyses the latest developments in north-western Syria. It addresses the risk of a ceasefire breakdown and renewed violence and proposes ideas for averting that scenario. In outlining the challenges local and external players face, it argues that what Russia and Turkey do next will decisively shape where the region is headed: toward a more sustainable ceasefire or toward a new round of brutal fighting that would provoke a humanitarian disaster. It is based on more than 100 interviews conducted in Syria, Turkey and Russia with Western, Russian, Turkish and Syrian officials over the past year, as well as with representatives of HTS and other rebel groups during visits to Idlib in 2019 and 2020. It also builds upon Crisis Group’s previous reports and briefings on Syria’s north west.

A timeline of events in Syria’s Idlib between September 2015 and May 2020

II. Predicaments and Priorities
A. The Syrian Regime, Russia and Iran

The violent standoff over Idlib presents a conundrum for all involved parties, yet in distinctly different ways. President Bashar al-Assad’s forces are fighting a battle-hardened array of rebel groups embedded in a population that is deeply antagonistic to the regime and fears its return. The area has long been the last Syrian destination for civilians and rebel fighters who either fled regime advances elsewhere in the country or were forcibly displaced through so-called reconciliation deals with the regime – negotiated surrenders in besieged rebel areas about to be overrun, such as Deraa, eastern Ghouta and the northern Homs countryside.
” More than three million people live in this pocket of territory, the overwhelming majority of them civilians. “

More than three million people live in this pocket of territory, the overwhelming majority of them civilians, but also thousands of fighters in jihadist and armed opposition factions.
The province’s newly complex demography, the strength of its armed factions and the fact that those who fear regime retribution have nowhere else in Syria to go may present the regime and its backers with a difficult dilemma. In Idlib, they are running up against the logical result of their own policy of negotiated surrenders and evacuations in earlier battles elsewhere. Unlike in Deraa, Ghouta and other recaptured areas, there is no plausible prospect of pushing a significant part of Idlib’s rebels into “reconciliation” deals. “Idlib is now a problem of our own making”, a businessman close to the regime said.

Damascus’ strategic priority has long been securing its strongholds in Latakia and Aleppo against rebel attacks and infiltration from Idlib, as well as restoring control over the two major highways that run through rebel-controlled areas, the M4 connecting Aleppo to the coast and the M5 to Damascus.

In theory, it could achieve these immediate objectives through a more durable ceasefire and security arrangements along the two highways.

Yet Damascus has given no sign that it is willing to budge from its declared intent to regain “every inch of Syria”, Idlib included.
While its backers may have financial and geopolitical considerations that could convince them to avoid a military showdown in Idlib, the regime has been keen to highlight its dissatisfaction with de-escalation zone and ceasefire agreements and its unwillingness to commit to any deal that will keep parts of Syria out of its control. Since Damascus is aware it can probably achieve its larger objective only through military escalation, it has broadcast its intention to push deeper into Idlib. “The military will not give up until it achieves total victory sooner or later”, Assad said in February 2020.

Whether the Syrian army can win a conclusive victory in Idlib depends primarily on Russia’s willingness to provide air support: without such backing the regime can rely only on its own troops, supported by allied non-Syrian militias, to regain and hold ground in Idlib. The Syrian army is much weakened by eight years of fighting and its morale is suffering.
” In deciding how far to go, Russia must balance its interest in restoring regime control over all Syria against its interest in maintaining and deepening its ties with Turkey. “

In deciding how far to go, Russia must balance its interest in restoring regime control over all Syria against its interest in maintaining and deepening its ties with Turkey. As a Russian diplomat put it, “Moscow has ample incentive to avoid a blow to its relations with Turkey over Idlib”.
Russia has become a key supplier for Turkey’s arms market, and cooperation between the two countries extends beyond Syria to strategic industries that create mutual dependencies (albeit more favourable to Moscow). Joint projects include the TurkStream pipeline bringing Russian natural gas to Turkey, Russia’s construction of the Akkuyu nuclear power plant in Turkey’s Mersin province and Turkey’s purchase of the Russian S-400 air defence system.

Russia’s geostrategic considerations include drawing Ankara closer to Moscow at Washington’s expense, thus driving a wedge in the NATO alliance and weakening U.S. influence.

An all-out assault on Idlib would put Russian relations with Turkey at risk. It would almost certainly put an end to the Astana process, the trilateral talks involving Iran that began in 2017, and in which Turkey’s participation has been critical for reaching previous ceasefires. Astana’s collapse or Ankara’s decision to downgrade its cooperation with Moscow would threaten Russia’s political project, not just in Idlib but in all Syria, and empower figures in the Turkish establishment who believe that Ankara needs to anchor itself more firmly in the Western camp.

Russia has to weigh other considerations as well. Because the rebels in Idlib, battle-hardened and entrenched, believe they have no choice but to fight to the end, any offensive would result in significant regime losses. Such a confrontation would also spell great difficulty for Damascus in pacifying and holding on to any territory retaken, and might exacerbate the problems it is already having in eastern, central and southern Syria.
Finally, Moscow could suffer diplomatically in the Middle East and globally from a humanitarian catastrophe it would have helped foment. Although this possibility does not seem to have played an important role in the Kremlin’s calculations thus far, one Russian official said, “We realise that we are not immune to an international outcry over Idlib”.

” For Moscow, balancing competing interests has meant having to slow down the military conquest of Idlib. “

For Moscow, balancing these competing interests has meant having to slow down the military conquest of Idlib. On one hand, Moscow has placed the burden on Turkey to solve the jihadist problem and made clear that any ceasefire is merely a step toward recovering the territory for the regime.
Time and again, Moscow has enabled Damascus to chew off bits and pieces of Idlib and its environs through forward military thrusts followed by negotiations, in which it has demanded that Ankara roll back jihadists from areas adjacent to government-controlled territory in Aleppo and Latakia provinces.

On the other hand, Moscow repeatedly touts the agreement the two sides reached in September 2018 – the Sochi Memorandum (see below) – to signal to Ankara that it has not abandoned the Astana framework. It also has agreed to various versions of a ceasefire.

This dual approach may also reflect competing views of different actors within the Russian system. A senior Turkish official said: “It seems to us that there is a clear divide between Russian politicians, who are keen on their relations with Turkey, and the Russian military and GRU [foreign-military intelligence agency], which prioritise delivering a full military win in Syria”.

The regime’s other critical ally, Iran, which has been supporting Damascus with its own military advisers and fighters from Lebanon, Iraq, Afghanistan and elsewhere since 2012, is likewise performing a geostrategic balancing act. It has tried to avoid alienating Turkey or overtly working against Turkish interests in Idlib, an area that is of lesser importance to its strategic interests in Syria than others. Moreover, Iran has been leaning on Turkey as a partner to develop bilateral economic relations in the face of considerable pressures due to U.S.-imposed trade and financial sanctions.
As such, Tehran initially did not participate in military developments in Idlib, except for providing logistical and advisory support to the Syrian army, and the militias it is backing generally stayed far away from the front lines. Only in January 2020, nine months into the offensive, when the fighting moved into the Aleppo countryside, close to areas Iran considers strategic, did Tehran scale up its military involvement in the offensive.

While Tehran professes support for the regime’s desire to regain control over Idlib and secure its presence throughout Aleppo province, in other words, it is also generally keen to preserve and nurture its relationship with Ankara. In several cases it has tried to appease Turkey by publicly acknowledging the legitimacy of the latter’s concerns over border security.

Whether these calculations would stop Iran from scaling up its military involvement in Idlib in case of renewed fighting is unclear.
B. Turkey and the West

Confronting the regime, Russia and, to a lesser extent, Iran in Idlib is Turkey. Ankara faces its own dilemma, trying to strike a balance between its interest in keeping Idlib out of regime control and thus preventing a flow of refugees – with jihadists mixed in – streaming across its border, on one hand, and its desire to maintain its relationship with Moscow and avoid a risky confrontation, on the other. A new wave of Syrian refugees would present serious political, economic and humanitarian challenges for a country that is already struggling with public discontent over the more than four million refugees it currently hosts.

Turkey also has a political interest in maintaining influence in Idlib, as that could enable it to affect the course of political talks over Syria’s future.
” Ankara has repeatedly pushed for ceasefires in response to renewed regime offensives. “

For these reasons, Ankara has pursued a negotiated solution for Idlib within the Astana framework and repeatedly pushed for ceasefires in response to renewed regime offensives.
Through regular meetings between Turkish and Russian negotiating teams comprising senior diplomats and military and intelligence officers, sometimes culminating in face-to-face meetings between the two countries’ presidents, Turkey has pursued a long-term political solution to its Idlib problem. Yet Turkish officials sense that Russia wants Turkey to view its refraining from an all-out assault on Idlib so far as a favour for which Ankara will have to compensate Moscow by continuing to accommodate Russian interests in Syria and beyond.

In response to repeated Russian/Syrian escalations throughout the last year, Turkey allowed rebel groups it has been supporting to establish a joint operations room with HTS in Idlib in June 2019 to coordinate operations against regime attacks. By mid-2019, it had started shipping anti-tank guided missiles to the main rebel alliance it supports, the National Liberation Front.
This support and increased cooperation between Turkish-backed groups and HTS enabled the rebels to jointly blunt regime advances during the offensive’s first months, and even reverse some of its gains, as well as to collect abandoned weaponry and ammunition.

In December 2019, regime forces renewed their assault with the support of heavy Russian aerial bombardment targeting the densely populated towns in southern Idlib and south-western Aleppo. These attacks sent civilians fleeing northward, and advancing regime forces encircled several of Turkey’s outposts in Idlib.
In response, in late January, Turkey sent reinforcements to both the rebels and its own observation posts, including battle tanks and armoured vehicles, as well as allied Syrian fighters from parts of western Aleppo it controls. On 27 February, an airstrike on a Turkish command headquarters killed at least 33 soldiers.

While initially hinting at Russian responsibility, Ankara publicly blamed the Syrian regime for the attack, thereby suggesting that it did not wish to get into a tangle with Moscow.

Turkey then took unprecedented retaliatory action against Syrian forces. Ankara says this action killed or injured more than 2,000 Syrian troops and destroyed regime fighter jets, tanks and other military equipment.
Turkey is aware that the assistance it provides rebels in Idlib may not balance Russian air support to the regime. But that assistance still signals the importance Turkey places on averting a regime offensive and the price to Moscow both politically – in its bilateral relations with Ankara – and militarily, in that Turkey can render a regime offensive very costly through its direct military intervention and by using advanced armed and unarmed (surveillance) drones. “Idlib is not only Turkey’s problem. Everyone would share the cost of a showdown in Idlib”, a senior Turkish official said.

In addition, in a bid to solicit diplomatic and even military support from the EU and U.S., Ankara followed through on a threat to open its borders with Europe, allowing migrants and refugees to pass through to Greece, thus sending the message that it would not shoulder a new refugee burden on its own.
Like Ankara, European capitals have a strong interest in averting a new mass influx into Turkey and potentially on to the continent. Turkey and the EU reached a deal in 2016 pursuant to which Turkey was to block migrants and refugees from crossing into Europe in exchange for financial support for hosting them in Turkey. Ankara’s latest gambit provoked harsh criticism in European capitals, but by using the refugee card Turkey suggested that it could yet drive up the cost of European inaction in Idlib. Indeed, it may have succeeded in heightening the EU’s attention to the crisis. European governments pledged additional funding for humanitarian assistance for Syrians in Turkey and Idlib, even as they refrained from offering military support to Ankara.

” The U.S. remains a relative wild card. “

The U.S. remains a relative wild card. Ankara asked the U.S. for military support, in particular the MIM-104 Patriot surface-to-air missile system to be deployed along the Syrian border. But U.S. policymakers are split between those who see the crisis in Idlib as an opportunity to coax Ankara back into the NATO alliance, and away from Russia, and others who remain suspicious of Turkey’s intentions and are particularly angry at what they see as Ankara’s wayward behaviour.

James Jeffrey, the U.S. special representative for Syria engagement, one of the most prominent members of the former camp, has argued in favour of providing greater backing to Turkey. In early March, Jeffrey visited Ankara to mourn the Turkish soldiers killed in Idlib on 27 February.
He issued statements of political support and, unprecedentedly for a senior U.S. official, crossed the border into Idlib along with the U.S. ambassador to the UN, Kelly Craft. Afterward, he told journalists that “Turkey is a NATO ally. Much of its military uses American equipment, and we will make sure that equipment is ready and usable”.

But the latter, more anti-Turkish view also has powerful backers. Ankara’s anti-U.S. rhetoric, the belief among some that it has turned a blind eye to jihadists, its purchase of the Russian S-400 air defence system and unilateral moves against the U.S.’s Kurdish partners in north-eastern Syria have left it with few allies in Washington.
Tellingly, in response to a question on potential U.S. military support for Turkey in Idlib, U.S. National Security Advisor Robert O’Brien said: “I do not think we are going to intervene militarily in Idlib to straighten out that bad situation”.

Divided, the Trump administration has simultaneously expressed support for Turkey while holding back on its request for the Patriot batteries.
So far, it appears disinclined to review this decision unless Turkey accedes to Washington’s demand to render the S-400s inoperable – a change of heart that seems unlikely.

III. Unworkable Ceasefires
A. The Astana and Sochi Agreements
” The current cycle of violence in Idlib reflects the erosion of a series of agreements negotiated among Russia, Turkey and – to a lesser extent – Iran. “

The recurrent cycle of violence in Idlib reflects the erosion of a series of agreements negotiated among Russia, Turkey and – to a lesser extent – Iran. These three countries reached an understanding in the Kazakh capital of Astana in May 2017, which established four de-escalation zones in Syria, including one in Idlib and adjacent sections of Latakia, Hama and Aleppo governorates. In September, the three Astana parties announced that they had demarcated the Idlib de-escalation zone and agreed to cease hostilities and deploy observer forces at points along its perimeter.
Turkey would monitor the rebels’ compliance through twelve military outposts located around the edges of rebel-held territory.

The arrangement effectively froze the front lines.

Divergences quickly emerged between Russia and Turkey over fundamental aspects of the agreements. The May 2017 Astana agreement stipulated that the signatories would ensure conflict parties’ compliance with the ceasefire; take all measures to fight designated terrorist groups; and continue efforts to make armed opposition groups comply with the ceasefire. Pointing at HTS’s continued presence in Idlib, Russia said Turkey had failed to take steps against HTS despite its UN listing as an organisation affiliated with al-Qaeda, while Turkey asserted that although HTS had moved toward ceasefire compliance, Russia and the regime had not – neither in Idlib (where strikes by pro-regime forces continued) nor in the other three “de-escalation” zones, which the regime recaptured in a series of offensives between February and July 2018.

In September 2018, Presidents Putin and Erdoğan negotiated a new deal in Russia’s Black Sea resort of Sochi, which headed off a seemingly imminent Russian-backed regime offensive in Idlib and reaffirmed the earlier Astana agreement.
The Sochi Memorandum of Understanding broadly states that both sides “reiterate their commitment to combat terrorism in Syria in all forms and manifestations”.

In addition, Russia agreed to “take all necessary measures to ensure that military operations and attacks on Idlib will be avoided and the existing status quo will be maintained”. Turkey also committed itself to securing the withdrawal of heavy military equipment (such as tanks, multiple-rocket launchers and mortars) and removing “radical terrorist groups” from a 15-20km-wide demilitarised strip between rebel- and regime-held areas inside the Idlib de-escalation zone. In addition, Turkish mobile patrols and Russian military police units were to monitor the demilitarised zone, opening the M4 Aleppo-Latakia and M5 Aleppo-Hama highways to traffic before the end of 2018.

While the Sochi deal was successful in temporarily halting an apparently imminent regime offensive, Ankara and Moscow soon again accused each other of non-compliance. Russia asserted that Turkey had failed to remove from the demilitarised zone all “radical terrorist groups” – a category in which Moscow, like several other foreign powers, includes HTS. It also faulted Turkey for failing to separate “terrorists” from moderates in Idlib (while the Sochi Memorandum makes no mention of this obligation, both countries seemed to implicitly accept that Ankara would deal with the problem of HTS, even if they disagreed on precisely how). For its part, Turkey contended that Russia failed to “preserve the Idlib de-escalation area” and instead enabled regime attacks on Idlib to shift the status quo contrary to the agreement.

The Sochi truce gradually frayed. Russian airstrikes and regime air and artillery attacks continued, claiming to target HTS and other alleged terrorist groups not covered by the ceasefire agreement that they said had been attacking regime-held areas. Meanwhile, rebel units continued to fire on regime forces, claiming to be responding to regime ceasefire violations.

In February 2019, Russia resumed airstrikes on Idlib and surrounding rebel-held areas, and in late April backed a major regime ground offensive. In a series of forward pushes (interspersed with short-lived ceasefires negotiated by Moscow and Ankara), regime forces gained small chunks of territory between May and September, then achieved more dramatic gains between December and March of this year. As noted above, this latter phase displaced over 940,000 civilians and saw deadly clashes between Turkish and regime forces that left dozens of Turkish soldiers dead. The losses prompted Turkey to deepen its military intervention. It announced the launch of Operation Spring Shield, aimed at pushing back regime forces to the pre-offensive front lines outlined in the Sochi agreement. Through artillery support for the rebels, the downing of regime aircraft and drone strikes destroying regime heavy weaponry, Turkey raised the cost to the regime and enabled Idlib’s armed factions to regain some ground.
” The counter-escalation was instrumental in bringing Moscow and Ankara back to the negotiating table. “

This counter-escalation may have been insufficient to reverse most regime gains, but it was instrumental in bringing Moscow and Ankara back to the negotiating table, as both parties seemed to fear an escalatory cycle that could have jeopardised their relationship.

After renewing contacts, they announced a cessation of hostilities on 5 March 2020.

The 5 March ceasefire agreement’s preamble states that both parties are committed to “combat all forms of terrorism” and to eliminate all terrorist groups in Syria as designated by the UN Security Council, while agreeing that “targeting of civilians and civilian infrastructure cannot be justified under any pretext”. Russia and Turkey have chosen to read these two phrases differently. While Russia insists that the ceasefire is conditioned on the elimination of these groups, Turkey conditions their elimination on both preserving civilian lives and avoiding further destruction, and also argues that in the absence of a defined timeframe for taking such steps, it has the chance to allow HTS to isolate hardliners and regroup its more pragmatic members perhaps under a different banner.

B. Why Idlib Ceasefires Have Broken Down

Idlib ceasefires almost certainly will continue to break down as long as Russia and Turkey diverge in overall objectives and on the interpretation and implementation of ceasefire agreements.

While Moscow has acceded to temporary arrangements linked to the Astana framework since September 2017, it has made clear that these are not an alternative to the regime’s eventual return to the north west. Its military moves coordinated with regime advances have shown that it can break ceasefires, press forward and, to some extent, dictate terms of the next ceasefire within the bounds of its interest in maintaining its relationship with Ankara.

Turkey, by contrast, has viewed these ceasefire agreements as a tool to keep the Idlib de-escalation zone out of regime control until the sides are able to reach a broader political settlement. The deals’ language notwithstanding, it also has rejected the notion that HTS could be militarily subdued. In practice, Turkey has not provided the rebels with the kind of assistance they would have needed to hold on to the entire de-escalation zone or reverse successive regime offensives: since September 2017, the regime has recaptured some 40 per cent of rebel-held territory in the north west. But Turkey has shown that it is willing and able to increase the cost of a military offensive to Russia.
” Moscow and Ankara maintain divergent views on the nature of HTS and what the Sochi agreement’s requirement that the two sides combat terrorism means in practice. “

As seen, Moscow and Ankara maintain divergent views on the nature of HTS and what the Sochi agreement’s requirement that the two sides combat terrorism means in practice. Some currents in Turkey, including non-Islamist nationalists and Eurasianists, are sceptical of any Turkish government engagement with HTS.
But Ankara mostly argues that HTS, despite emerging from an al-Qaeda affiliate, no longer has a transnational agenda, is fundamentally pragmatic, would abide by a ceasefire and could be a useful interlocutor capable of containing or eliminating transnational jihadists in Idlib, including remaining ISIS elements.

Ankara also takes the view that, given how strong, locally rooted and entrenched HTS is, any attempt at defeating it militarily would come at a high human cost and might endanger Turkey’s own presence in north-western Syria. Direct Turkish intervention against HTS, officials say, would entail a risky and costly military operation that could leave its forces vulnerable to asymmetrical attacks by jihadist militants in Syria and perhaps even in Turkey.

Additionally, clearing the area of its strongest rebel group would pave the way for the regime to retake it at a lower cost, contrary to Turkish interests.

In relation to the Sochi agreement’s implementation, Ankara argues that it contained rebel groups, including jihadists, and cleared the demilitarised zone of all heavy weaponry before the regime’s April 2019 offensive.
As a result, Turkish officials say, Idlib was calm from September 2018 till April 2019, apart from minor skirmishes between rebels and the regime and the resumption of Russian and regime airstrikes.

Russia, by contrast, considers HTS strictly a terrorist group, consistent with the group’s UN Security Council listing.
Moscow describes its compliance with the ceasefire outlined in the Sochi Memorandum as conditional on HTS’s removal from the demilitarised zone defined in the agreement, and its separation from the armed opposition in Idlib as a step toward its eradication. Moscow has invoked HTS’s UN listing and continued presence in Idlib to legitimise its assaults on the area.

” Russia also questions Turkey’s ability and willingness to rein in HTS. “

Russia also questions Turkey’s ability and willingness to rein in HTS, remove it from the demilitarised zone and separate it from supposedly non-jihadist rebels in the Idlib de-escalation zone. The Russian defence ministry claimed in September 2019 that Russian forces had shot down or disabled over a hundred rebel drones attempting to attack the Hmeimim air base over the previous two years.
The attacks failed, Russian officials say, but they cite them consistently as the reason for the intensified air campaign in and around the demilitarised zone beginning in February 2019 and the ground offensive launched in late April. “We cannot take these attacks lightly”, a Russian official said as late as March 2020. “They are putting our military under a lot of pressure”. It is unclear whether or how many drone attacks on Hmeimim have taken place. U.S. and Turkish officials say they have seen no evidence of them and assert that Moscow is mostly using its claim to justify the offensive; under that view, HTS’s removal by Turkey would only improve the regime’s prospects of regaining territorial control.

A return to the existing Sochi understandings therefore risks doing little to advance the possibility of a sustainable ceasefire unless Moscow and Ankara first address the gap between their respective positions, notably regarding how to deal with HTS. Not only is Turkey presently unable to credibly make commitments that involve eliminating HTS, but it also seems to have concluded that HTS may be the only local force capable of containing Idlib’s remaining transnational jihadists and slowing the regime advance, thus preventing the refugee outflow that Ankara fears most.

IV. The HTS Conundrum

Regime rhetoric vis-à-vis Idlib and its track record in dealing with its opponents, coupled with Idlib rebels’ rhetoric toward the regime, make it hard to conceive of a peaceful middle ground between the two sides, at least for the foreseeable future.
For HTS fighters, and thousands of other rebels who were forced to evacuate to Idlib in the past few years, capitulating to the regime is not a path they would contemplate. That the regime has infringed upon the terms of “reconciliation” arrangements in other parts of Syria, while portraying those who chose to go to Idlib instead of surrendering as irreconcilable terrorists, makes this route as good as impossible.

” HTS has shown at times that it might be willing to adjust its behaviour, while remaining bitterly opposed to Damascus. “

At the same time, HTS has shown at times that it might be willing to adjust its behaviour, while remaining bitterly opposed to Damascus. To some extent, its leadership has demonstrated an ability and willingness to adhere to ceasefires negotiated by others, even when doing so entailed political costs. In October 2018, the group issued a statement implicitly accepting the Sochi deal.
While its fighters stayed in the demilitarised zone (after rebels including HTS withdrew heavy weapons), HTS halted cross-line attacks as long as the regime did, and it did not interfere when Turkish soldiers deployed. The group increased security cooperation with Turkish-backed rebels through the joint operations room; silenced internal critics of its rapprochement with Turkey; and invited international journalists, analysts and humanitarian workers to Idlib, seeking greater world attention to the area’s humanitarian plight. These steps have been controversial. A senior HTS official said: “Each decision cost us waves of dissent from hardliners within the group who refused to understand broader developments around them”.

Yet how far HTS will go and to what end is a matter of intense controversy. There is no agreement among close Syrian or foreign observers as to the drivers and extent of this transformation.

A. Breaking from al-Qaeda

HTS presents itself today as a local Islamist group independent from al-Qaeda’s chain of command and with no transnational Salafi-jihadist agenda. In July 2016, when it was known as Jabhat al-Nusra, it publicly severed its organisational ties with al-Qaeda and renamed itself Jabhat Fateh al-Sham.
While the 2016 announcement was widely viewed as a move partially coordinated with al-Qaeda’s leadership instead of a genuine break, Jolani sought to cement the rupture in January 2017 by declaring a merger with other rebel groups in Idlib and calling the new alliance Hei’at Tahrir al-Sham – a move that subsequently drew strong criticism from al-Qaeda leader Ayman al-Zawahiri.

Today, HTS claims that its break with al-Qaeda was part of a broader evolution from a Salafi-jihadist movement with transnational ties toward a Syrian conservative Islamist organisation focused on administering Idlib, which it has effected through a series of rebranding efforts and internal transformations.

In making the case for this evolution, HTS leader Abu Muhammad al-Jolani has claimed that HTS “was influenced by a Salafi-jihadist milieu that emerged out of a desire to resist foreign occupation of Iraq after the U.S. invasion. But today our fight has become strictly a local one against a regime that lost its legitimacy in Syria”.
Some Western officials dispute that the group has permanently and definitively given up on its cross-border ambitions.

Jolani has driven the group’s apparent evolution, strengthening his grip through its ability to consolidate administrative control over Idlib and its relative capacity to hold ground against regime advances. HTS’s highest religious figure, Abdul-Rahim Attoun (also known as Abu Abdullah al-Shami) has played a primary role in rationalising the group’s ideas and decisions to HTS supporters. As Attoun put it: “It is important for us to keep our base informed, and on board with our decisions, and not to drift too far off from them the way other groups did”.

” Jolani has driven the group’s apparent evolution. “

HTS leaders may have initially wanted a smooth – perhaps even perfunctory or symbolic – de-linking from al-Qaeda but ended up with what seems to be a real rupture.
By late 2016, Jolani appears to have concluded it was no longer in the group’s best interest to pursue the kind of relation with al-Qaeda that isolated the group at best and made it a target at worst. As he sought to present it: “I conditioned my allegiance to al-Qaeda on not using Syria as a launching pad for external operations and solely focusing on the internal fight against the Syrian regime and its allies. This has always been a constant pillar of our strategy”. A senior HTS figure went further: “Ayman al-Zawahiri advised us to prioritise our alliances with other Syrian factions over our ties with al-Qaeda if these became an obstacle to the former”. Zawahiri’s subsequent furious reaction to Jolani’s de-linking announcement does not support this claim.

Today, HTS leaders assert that the dissociation from al-Qaeda was both legitimate and vital to maintaining good relations with other rebel groups.

A senior HTS figure put it this way:

We prioritised the Syrian revolution over international jihad. This is a decision that did not appeal to top al-Qaeda figures, but it is both irreversible and necessary to maintain alliances with groups that would have not agreed to work under the banner of al-Qaeda.

Jolani initially may have pushed for Jabhat al-Nusra’s dissociation from al-Qaeda mainly in the hope of escaping its UN listing and enabling it to merge with other rebel groups to form a stronger anti-regime coalition. Over time, however, HTS’s break with al-Qaeda appears to have become more profound.

HTS’s leaders have sidelined, silenced or expelled hardliners and non-Syrians who opposed its transformation, including some of its prominent figures like Abu Suhaib al-Masri and Abu Yaqzan al-Masri, seemingly rendering itself more Syrian and less externally focused in the process.
According to Jolani, “When we take a decision, everyone commits to it, and those who are unhappy with these transformations can leave”. The dissociation decision and internal transformations led to months-long internal wrangling followed by the arrest and departure of many of the group’s most uncompromising ideologues and their adherents. Many defected to harder-line jihadist outfits such as Hurras al-Din, a group led by prominent al-Qaeda loyalists. “We lost a number of our base when we severed ties with al-Qaeda and fought ISIS, and again when Hurras al-Din was created [in 2018]”, a senior HTS religious figure asserted. These decisions triggered strong criticism of Jolani among transnational jihadists, as well as military confrontations and tit-for-tat assassinations across the north west.

B. Controlling Idlib

Among the factors involved in HTS’s break with al-Qaeda and other Salafi-jihadists, a core strategic disagreement stands out. The HTS leadership decided to prioritise holding territory and providing services to Idlib’s population. It has proven willing to compromise militarily and ideologically toward those ends, for example by largely halting its attacks during Turkish-Russian ceasefires (to which it has not been a party) and facilitating the deployment of Turkish forces in Idlib (even though Salafi-jihadists view the Turkish military as a hostile institution).
In contrast, al-Qaeda leader Ayman al-Zawahiri, in addition to condemning HTS’s decision to break from his organisation, has strongly criticised HTS for cracking down on al-Qaeda loyalists and distancing itself from transnational jihad; warned of a “Turkish invasion”; and advocated a different strategy: shifting to a guerrilla war of attrition aimed at “destroying the enemy’s morale” by inflicting unsustainable losses, rather than prioritising territorial control. Salafi-jihadist hardliners within Syria have voiced similar criticisms.

” HTS used a mix of co-optation and coercion of existing opposition-affiliated governing structures to consolidate its administrative control. “

In late 2017, as it was attempting to achieve military dominance in the area, HTS used a mix of co-optation and coercion of existing opposition-affiliated governing structures to consolidate its administrative control. In September 2017, HTS endorsed the establishment of the “Salvation Government” in Idlib to see to the province’s day-to-day affairs. The Salvation Government was an alliance of opposition remnants and HTS associates, driven by necessity rather than ideology, and powered mainly by technocrats who enjoy a degree of autonomy from HTS. Only a few government ministers adhere politically to HTS, while the others are quasi-independent from it, coming from diverse Islamist backgrounds.
Jolani put it this way: “The Salvation Government did not morph from HTS. It is just as inaccurate for others to say we control it as it is for us to claim that we have nothing to do with it”. Some Western governments and many Syrians see the Salvation Government merely as a tool by which HTS advances its political project. Reality is more nuanced.

The Salvation Government has taken charge of the area’s economy, but one strategic economic activity it has not monopolised is Western humanitarian aid, apparently to avoid local and donor backlash. The scarcity of resources in Idlib and the area’s heavy reliance on Turkish and Western aid, coupled with the increasing numbers of displaced people, have made the group wary of imposing policies that could push donors to cease their support. A senior Salvation Government official said: “When we imposed a nominal tax on vehicles delivering aid across the border [in 2019], donors threatened to end their support. So we walked back our decision”.
Some Western governments do not buy HTS’s claimed hands-off approach, and some governments that feared their funds would fall into the hands of a group subject to UN terrorism sanctions decided to terminate their stabilisation assistance programs in Idlib in 2018-2019.

” Close observers say HTS has a mixed track record when it comes to policing social norms. “

While professing to take a relatively hands-off approach to day-to-day governance, HTS has consolidated its grip on administering Idlib and insisted that the Salvation Government reflect conservative Islamist political views. Close observers say HTS has a mixed track record when it comes to policing social norms. “They don’t force women to fully cover their faces, but they do impose gender segregation at schools and universities, and in the past they have tried to ban smoking, but they gave up when people pushed back”, one analyst said.
Like other rebel groups, HTS excludes women from its leadership and political organs. It has not barred women from public life or professional practice, but in practice the gender segregation it demands appears to hinder women from working in a number of jobs.

HTS has warded off more severe domestic criticism of these practices in Idlib by dint of its Islamist outlook, which many rebel groups share even if they do not share the group’s political project, and the fact that all face a common enemy that is directly threatening the whole area.
Moreover, by ensuring a state of relative calm in areas it controls and outsourcing day-to-day governance to the Salvation Government, HTS has been able to generate a degree of buy-in from a critical mass of civil servants and technocrats.

HTS does have vocal detractors among the opposition groups that it shunted aside, and ordinary citizens suffering from deteriorating living conditions have occasionally staged protests against rising fuel prices, inadequate services and increased taxes.
Some Western-backed rebel groups remain bitter over HTS having used force against them to consolidate its military control and governance structures. As a commander of a rebel group previously operating in Idlib put it: “We won’t forget how they prioritised going after us over fighting the regime”. Civil society activists also figure among the main critics of the group’s autocratic conduct, which includes arbitrary arrest and harassment of dissenters.

C. How Genuine the Transformation?

It remains unclear whether HTS’s shifting ideological and political stance is driven by a genuine change of heart or a tactical and temporary adjustment made in the face of growing military pressure, which necessitates soliciting outside help. The group’s apparently less ideological and more pragmatic approach to its surroundings is gainsaid by the violence it has used against rival factions, including moderate opposition groups; its silencing of critics and detention of non-violent activists and opposition-affiliated civil servants; and its retention of foreigners with hardline stances within its senior ranks even as it has sidelined many others.
Of additional concern are its continued, albeit ambiguous, relations with harder-line groups.

Moreover, HTS has yet to clearly define any concrete reforms it would be willing to undertake consistent with its declared course change. Like those of most other rebel factions, the group’s position on the key features of a final settlement for the Syrian conflict is unclear, and its posture toward its opponents remains repressive.
” Scepticism of the group’s intentions is merited given its ideological provenance. “

Some claim that HTS’s apparent transformation is no more than a charade.

Scepticism of the group’s intentions is merited given its ideological provenance, history of being affiliated with groups plotting transnational attacks and track record in dealing with others. But the steps it has taken so far, within the context of the near-defeat of Salafi-jihadism in Syria generally, suggest that the group may have started to move in a direction that could be more palatable to at least some outside parties: focused on battling the regime, governing Idlib, suppressing any transnational threat from its current or former comrades in arms, and seeking external support for a population in desperate need of assistance.

None of the group’s statements should be taken at face value. Instead, the best way to assess the sincerity of the apparent change is to test it in practice – politically by examining HTS’s willingness to deal peaceably with critics and dissenters; in the humanitarian field by the access it provides to outside help; and militarily by continuing to explicitly reject external operations, adhering to the terms of negotiated ceasefires and reining in hardline groups in Idlib.

If HTS were to fail to deliver on these points, whatever slim hope remains for a peaceful path out of the standoff in Idlib would almost certainly vanish. The group’s chance to rise to the challenge of both protecting and governing the province’s frightened population is now.
V. A Way Forward

The existence of a rebel-controlled enclave in Idlib is a thorn in the side of Russia and the regime in Damascus. Yet given the costs and risks of a broader offensive and HTS’s apparent shift toward greater pragmatism, Turkish and even Russian interests may be better served by a scenario short of a renewed assault upon the area, namely an extended and strengthened ceasefire that does not exclude or target HTS. More importantly, this scenario could spare over three million Syrians and stop a humanitarian disaster from assuming even greater and more tragic proportions.
” Moscow’s best option may well be to strike a new agreement with Turkey by which HTS would be incorporated in the ceasefire. “

The 5 March Russian-Turkish ceasefire agreement, like its predecessors, left the door open to continued Russian attacks against groups that are considered terrorist. In purely military terms, Russia likely could support the regime in crushing HTS and other rebel groups in Idlib if it so chooses and is willing to absorb the grave humanitarian, political, diplomatic and potentially even security costs of victory, including scattering thousands of jihadists across Syria and beyond.

If it hopes to spare itself those costs, however – and particularly to preserve reasonably good relations with Ankara that serve Moscow’s wider geopolitical interests – its best option may well be to strike a new agreement with Turkey by which HTS would be incorporated in the ceasefire, at least for as long as it adhered to the deal’s terms. More broadly, relevant external actors, such as Turkey and key Western stakeholders, should define clear thresholds and conditions for HTS which, if met, could enable its inclusion in a ceasefire agreement, even if indirectly.

To that end, HTS would need to take a number of steps that demonstrate a good-faith effort to seek a peaceful path out of the Idlib crisis. Among these, it should halt attacks on Russia’s Hmeimim air base and other regime-held areas, if indeed they are behind these attacks, and also prevent smaller, harder-line jihadist factions from carrying out similar strikes.
As the dominant military group in Idlib and the power behind the local government, HTS should continue to work to contain or neutralise transnationally inclined jihadists, whether ISIS or otherwise.

Finally, HTS needs to comply with agreements Turkey and Russia reached over patrols on, and traffic along, the M4 highway in Idlib.

Beyond the ceasefire lies the broader question of HTS’s policy orientation and identity. HTS leaders have hinted both publicly and privately that they would be willing to dismantle the group and merge into a new rebel alliance.
But such a move, in and of itself, is unlikely to change how key actors view the group; a simple name change would not suffice.

To change perceptions and stand any chance of avoiding listing as a terrorist organisation, HTS would need to demonstrate concrete transformations on key issues in a new iteration, such as denouncing al-Qaeda and its transnational agenda; pledging to block any transnational jihadist presence or activity in Idlib; removing all hardline individuals with links to al-Qaeda from its ranks; and committing to respect religious and political pluralism. On the last point, it should expunge sectarian rhetoric from its messaging (which HTS leadership says it has already initiated), broaden the scope of participation in the Salvation Government and expand space for independent civil society activism.

Such an evolution, even if genuine, is unlikely to matter much to Russia, let alone the regime. That Idlib is controlled by a UN-sanctioned pariah rather than a more palatable rebel movement arguably gives leeway for fresh efforts to recapture the province. Indeed, according to one Russian official: “The idea that HTS has become pragmatic enough to be tolerated is not something that would resonate in Moscow, and we would not be able to convince Damascus to accept an HTS enclave permanently”.

HTS’s inclusion in ceasefire deals, even if informally, could address Moscow’s concern about alleged attacks on Hmeimim air base or government-controlled areas. Were the group to take additional steps rendering it more acceptable to other powers, that might also have some marginal impact on Moscow’s thinking – though the West appears unlikely to warm to HTS any time soon. Further evolution by HTS may ultimately be necessary to avert a showdown in Idlib, but it will not in itself stave off a new offensive – decisions about which hinge mostly on Russia’s calculations about its ties with Turkey and the military costs.
” This shift could also lead to increased international support to the province beyond basic humanitarian assistance. “

Such an evolution would, however, bring other advantages. Given Idlib’s uncertain future, the group’s definitive rejection of global militancy would benefit foreign powers that fear external attacks emanating from the region – all the more so if HTS cracks down on transnational jihadists. Idlib’s inhabitants would gain were HTS less repressive and displayed greater tolerance for political and religious pluralism. This shift could also lead to increased, desperately needed, international support to the province beyond basic humanitarian assistance. Given the paucity of other options, it is worth Turkey’s while, with implicit or even more overt support from Western governments, to keep encouraging such a transition.

As for Russia, it should pursue an alternative to a military campaign in Idlib. The cost of such a campaign to its international position and notably its relationship with Ankara is likely to rise, given Turkey’s willingness to resist militarily. Russia should also acknowledge the pressing humanitarian imperative in Idlib and avoid contributing further to the destruction of civilian infrastructure as part of its intervention. Western countries might impose additional sanctions on Russia for its military actions in Idlib, and while as yet most distrust HTS, few are willing to buy into Moscow’s counter-terrorism justification for the damage and suffering its air force has caused.

Even if Moscow attaches no great importance to more Western sanctions, other factors might enter its calculations. The cost to regime equipment and manpower would almost certainly also be immense, given the rebels’ strength and insurgent capacity, their familiarity with the terrain and Idlib’s rugged landscape. The regime, already stretched thin and struggling to contain mounting insurgent activity in formerly opposition-held areas, would be vulnerable to fresh rebellions in Idlib and elsewhere. Military success in Idlib could thus further threaten its capacity to maintain control across the full expanse of its territory.

Further pursuit of a military offensive in Idlib could also put at risk the rest of Russia’s political project in Syria. Even if one accepts that Turkey has under-delivered on its counter-terrorism pledges in Idlib, it has contributed in important ways to Russia’s other political efforts, both within the Astana framework and as part of the UN-led process, for example initial steps toward drafting a new Syrian constitution. An attack on Idlib could, in effect, render Astana meaningless. Cumulatively, all of these factors heighten the cost of a renewed offensive for Moscow.
” Ankara and Brussels should preserve and strengthen an extended ceasefire in Idlib as an immediate priority. “

For its part, Turkey, likely with U.S. support, should develop a counter-terrorism strategy for Idlib that prevents the area from becoming a staging ground for transnational jihadist activities while protecting civilians and civilian infrastructure. Turkey’s increased military control in Idlib, and the military coordination that comes with it, gives Ankara more leverage over rebel groups, including HTS, and allows it to nudge HTS in the more palatable direction described above. Moreover, even as they deploy efforts to avoid another military onslaught, the EU and Turkey, neither of which wants to grapple with another influx of refugees, ought to prepare to address the humanitarian crisis in Idlib; indeed, this matter has acquired greater urgency given the spread of COVID-19, as a result of which a humanitarian time bomb on Turkey’s border could explode at any moment. Ankara and Brussels should rush medical aid and supplies to the displaced.

Turkey has made clear that its capacity and tolerance for managing the humanitarian fallout in Syria is reaching its limits. The EU will need to do more to share the burden. It should offer additional assistance to civilians in Idlib, including support directed toward health and education, and thus test HTS’s expressed willingness to keep its hands off of humanitarian assistance. The EU and its member states should also offer direct support to grassroots organisations working in Idlib and encourage EU-funded organisations to focus their efforts on that area. While there may not be an evident way to bridge the many gaps in EU-Turkey relations, Ankara and Brussels should use their renewed diplomatic engagement – triggered by the Idlib crisis – to preserve and strengthen an extended ceasefire in Idlib as an immediate priority.
VI. Conclusion

A military takeover of Idlib would not end the Syrian war, or contribute to ending it, despite the extraordinary cost it would entail. The regime’s capture of swathes of northern Hama, Aleppo and parts of Idlib has demonstrated that Russia can enable its advances through scorched-earth tactics and aerial bombardment that render areas at least temporarily unlivable. The decision about what comes next is thus primarily Russia’s. If Moscow greenlights and provides air support for an all-out regime offensive, the rebels holed up in Idlib may well prove unable to stop it. Nevertheless, such an effort would be exceptionally harmful for all involved, Russia included. It would undercut Moscow’s relations with Ankara. It could scatter jihadists in all directions, including into post-Soviet space, and worsen an already disastrous humanitarian situation. While Russia may not care too much about the latter, it has at a minimum been keen on preserving its relationship with Turkey.

If Russia hopes to avoid such a damaging military victory, it should consider alternatives. A more sustainable ceasefire agreement negotiated with Turkey could meet Moscow’s security needs while incorporating HTS, ensuring that whatever agreement emerges has a greater chance of being implemented. At a minimum, this option is worth exploring.

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