Islamic State of Iraq and Syria - ISIS

The standoff between Iran and Saudi Arabia could impact the U.S. campaign against ISIS in Iraq and Syria.

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

The U.S. commander in Iraq said ISIS is feeling strain from shrinking resources as the Iraqi government gears up to retake...

U.S. troops have been told to "run, hide and then fight if necessary" if caught up in a Brussels-type attack.

ISIS is a growing presence in Libya and a threat to the stability of its interim government, the U.S. commander for Africa...

Carter secured pledges from allies in the U.S.-led coalition against ISIS to do more but the allies were short on specifics.

Pentagon officials said Tuesday they were "skeptical" about reports that an airstrike from the U.S.-led coalition in Syria...

Iraqi forces should press the offensive against Mosul despite terror attacks in Baghdad, U.S. officials said.

Army Lt. Gen. Sean MacFarland leaves behind an anti-ISIS campaign that has switched from defense to offense.

The U.S. military halted its air raid against ISIS in eastern Syria after learning it struck Syrian government forces.