A branch of Islamic State, the militant group that once sought control over swathes of Iraq and Syria, has claimed responsibility for a deadly terrorist attack at a Moscow concert hall. Here's what we know about ISIS-K. ⌘ Read more
A branch of Islamic State, the militant group that once sought control over swathes of Iraq and Syria, has claimed responsibility for a deadly terrorist attack at a Moscow concert hall. Here's what we know about ISIS-K. ⌘ Read more