Nigerian soldiers retreat from mined Boko Haram stronghold
The nine lives of Sufi Mohammad
McCain: New Islamic State war powers request 'is not going anywhere'
Wily, methodical Kurds learn what it takes to drive back surprisingly resourceful Islamic State fighters
Boko Haram crisis: Nigeria begins Sambisa ground offensive
Yemen rebels demand complete end to attacks, seek talks
Iraqi forces fight to rout Islamic State militants from Ramadi
Islamic State shot and beheaded 30 people in Libya: video