Four U.S. Green Berets were killed in the October 4 attack blamed on ISIS-affiliated militants.
Al-Sahrawi has commanded a small group of ISIS-supporting fighters in West Africa since 2015.
Militant groups including ISIS and Al-Qaeda are active across Africa.
Abubakar Shekau, a jihadi with a $7 million U.S. bounty on his head, continues to give Nigeria's military the slip.
Somalia is fighting factions of both Al-Qaeda and ISIS. It needs American assistance.
The Group to Support Islam and Muslims bragged about killing Westerners and attacking "a site of debauchery"
The EU is investing $56 million in a counter-terrorism force in a region awash with militant groups.
Somalia's Al-Qaeda affiliate killed 4,300 people in 2016, making it Africa's biggest militant threat.
Islamic State militant group accepts allegiance of a militia based in a region high in instability and low in security.
Around 20 Kenyans have traveled to join ISIS in Libya and the Middle East.
The deputy imam at a Kigali mosque was suspected of encouraging Rwandan youths to join ISIS in Syria.