Yemen

The six-man team that attacked the US Embassy on Sept. 17 has links to al Qaeda; three of the men fought in Iraq. Many of the more than 1,200 terrorists charged in Saudi Arabia are from Yemen.

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

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Iraq

Islamic state

Syria

Aqap

Al shabaab

Boko Haram

Isis