The spotlight now shifts from the jungles of Colombia to a well-guarded meeting hall in Cuba.
Within the past week, dozens of ISIS fighters have been killed in a wave of airstrikes.
At least 28 jihadists were receiving Danish unemployment benefits while they were fighting for groups linked to the Islamic State.
The extremist group Boko Haram is being eyed as the responsible party in the bombing of a mosque in Kano, Nigeria.
Pope Francis, on the first day of his three-day trip to Turkey, met President Recep Tayyip Erdogan and several top religious leaders.
A mosque bombing is the latest atrocity in a terror campaign that has killed hundreds in Nigeria in recent weeks.
At least 40 Indian nationals, most of whom are construction workers, have been missing in Iraq since June.
American forces' involvement in the rescue mission was initially kept quiet.
Al Qaeda is "fighting for what's left in Syria" to establish its own Islamic Emirate, experts say.
This is the first incident of ISIS executing someone based on sexual orientation
ISIS has started using a new tactic in Iraq. And it's doing so on a big scale.
The suicide bombers blew themselves up in Maiduguri's main market.
Kidnapping for ransom as a revenue source continues to grow in popularity among terrorist groups worldwide.
Khalid Mahmood says Foreign Office's official figure of 500 fighters is an "underestimation."
Witnesses said the 28 victims were told to lie down in the mud and then were shot to death.
The Pentagon hopes to send $24 million worth of weapons to tribesmen in Iraq to fight Islamic State militants.
Al-Shabaab militants blew the victims' "heads off just like that," according to one survivor.
This is the second attack in the Nigerian state of Borno this week, with the death toll at nearly 100.
The latest split in extremist ranks comes after a decade-long rocky relationship.
One of the most gruesome ISIS videos to date signals a change in strategy for the militant group.
The terrorist group has killed thousands this year in Nigeria and government leaders accuse the president of letting it happen.
In Iraq, the strikes against Islamic State were concentrated on the oil-producing north.