The US-led coalition has killed 13 Islamic State leaders in and around Mosul, Iraq in the past month. Three of them were Chechens, highlighting the important role that foreign fighters play in the group’s chain of command. According to Operation Inherent Resolve spokesman Colonel John Dorrian, another fallen jihadist was responsible for manufacturing chemical weapons to be used in the defense of Mosul.

The Ansar al Din Front in Syria has released a statement mourning the death of Harith al Nadhari, a sharia official in al Qaeda in the Arabian Peninsula who was killed in a US drone strike on Jan. 31. The statement is further evidence that Ansar al Din is, at a minimum, closely allied with al Qaeda’s international network.

Rustam Asilderov, the former head of the Islamic Caucasus Emirate’s Dagestan province, swore allegiance to the Islamic State’s Abu Bakr al Baghdadi earlier this month. The move by Asilderov and other jihadists drew harsh criticism from their former superiors.
