Russia

A group of Chechen and Arab fighters, led by Aslambek Vadalov and Khuseyn Gakayev, refused to accept Doku Umarov as emir of the Caucasus Emirate after Umarov retracted his resignation. Vadalov was named by Umarov to serve as his successor.

Bill Roggio is a Senior Fellow at the Foundation for Defense of Democracies and the Editor of FDD's Long War Journal.

Iraq

Islamic state

Syria

Aqap

Al shabaab

Boko Haram

Isis