Six separate terrorist attacks took place in Europe between late September and late November of last year—three in France, and one each in Germany, Austria and Switzerland. All six attacks were inspired by Salafi-jihadist ideology, which is, and will remain, a persistent terrorism threat to Europe and elsewhere in the …

Rumors began swirling last fall that al-Qaida chieftain Ayman al-Zawahiri had died of natural causes. With no confirmation, counterterrorism analysts and long-time al-Qaida watchers weighed in with various assessments of what it would mean for the terrorist organization if it had indeed lost its leader. Just last week, al-Qaida’s official …

“The terrorists are quick,” German Chancellor Angela Merkel told reporters after a summit with the leaders of Mauritania, Mali, Niger, Chad and Burkina Faso in Ouagadougou in May. “This is why we have to be quicker, so that we can beat them.” What happens in the Sahel, the vast sub-Saharan …