Terrorism

It's the timeless question that pervades the thoughts of troops caught up in a war winding-down: "What's our mission?"

The U.S. military worked out a deal with Nigeria to share intelligence in the search for the kidnapped girls.

A U.S. drone strike in Syria Tuesday reportedly killed a fugitive British computer hacker who had become one of ISIS' top...

The U.S. military was fairly sure that the ISIS executioner known as "Jihadi John" was killed by its Hellfire missile strike.

Turkey's president Tayyip Erdogan on Friday warned Vladimir Putin not to "play with fire" as their war of words continued to...

Another member of the gang of ISIS executioners known by their captives as "The Beatles" reportedly has been identified.

Syrian forces have backed off on attacking opposition groups following Russia's withdrawal announcement, according to the U.S...

The DoD's relatively new Cyber Command has received its "first wartime assignment" in the fight against the Islamic State.

U.S. Special Forces troops in Syria who showed up in photos wearing the arm patches of a rebel group regarded as terrorists...