Islamic State of Iraq and Syria - ISIS

Kurdish and other opposition groups backed by the U.S. have taken to fighting each other as the Syrian civil war spirals.

The U.S. will hold for about a month captured ISIS leaders for interrogation before turning them over to local authorities.

The Marine unit that suffered a fatality at a newly renamed base in northern Iraqi continues to come under sporadic attack.

The U.S. Air Force's B-52 Stratofortresses have conducted their initial airstrikes against ISIS, military officials said.

The Russian military suffered a setback in Syria when fires destroyed four Mi-24 attack helicopters last week.

The nominee to head U.S. Africa Command said the White House has refused to back close air support for Libyan forces against...

Charges that U.S. airstrikes may have killed scores of civilians in Syria are now the subject of a U.S. military...

Turkey sent mixed signals Friday on its intentions as Turkish forces crossed into Syria to take the border town of Jarablus.

Russia reportedly sent more warplanes into Syria to join what the U.S. has called "barbarous" airstrikes on Aleppo.

U.S. airstrikes destroyed about 40 ISIS trucks preparing to convoy civilian "human shields" back into the city, a spokesman...