Their home countries don’t want them and holding trials in Syria isn’t an option: now suspected foreign terrorists could end up facing tough justice over the border in Iraq.

The U.S.-backed Syrian Democratic Forces (SDF) began an assault against the final Islamic State enclave in eastern Syria on Saturday, aiming to wipe out the last vestige of the jihadist group’s “caliphate” in the SDF’s area of operations.

Foreign fighters reportedly executed after launching attack against Abu Bakr al-Baghdadiby Martin Chulov in Baghouz, eastern Syria.