Mali

Three European aid workers kidnapped last fall in Algeria and held by the al Qaeda-linked Movement for Oneness and Jihad in Mali were released after a ransom of $18 million was paid and two Islamist terrorists were freed. One of those freed is said to be Memine Ould Oufkir, who had been arrested following the kidnapping.

Iraq

Islamic state

Syria

Aqap

Al shabaab

Boko Haram

Isis