More On Islamic State of Iraq and Syria - ISIS

The Iraqi offensive to retake Fallujah imperiled thousands of trapped civilians in the ISIS stronghold, according to the UN.

The downing of a Russian airliner in Egypt last year was blamed by the CIA on the ISIS affiliate in Sinai.

Republican presidential nominee Donald Trump blasted Hillary Clinton and pledged to "defeat the barbarians of ISIS" if...

A dramatic 10-second video released this week by aid worker Kayla Mueller's family showed the woman pleading for help shortly...

The U.S. won't need more troops for the battle of Mosul beyond the additional 600 just approved.

Turkey said a U.S. plan for a Raqqa offensive was a non-starter if it involved Kurdish fighters branded as terrorists by...

At the request of Iraqi forces, U.S. warplanes carried out a deliberate bombing of a Mosul hospital used by the Islamic State...

Defense Secretary Jim Mattis said that putting U.S. ground combat troops into Syria and Iraq is not under immediate...

The London terror attack underscores the growing threat in Europe from so-called "lone wolves" inspired by ISIS, NATO's head...

A deal hammered out by Russia, Turkey and Iran to set up "de-escalation zones" in Syria is now in effect.