Al Qaeda

Omar Hassan, whose sister, Omayma, is married to Ayman al Zawahiri, was killed in Afghanistan earlier this year. Hassan likely facilitated the 2006 merger of the external branch of the Egyptian Islamic Group with al Qaeda.

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