More On Islamic State of Iraq and Syria - ISIS

ISIS on Wednesday claimed responsibility for a pair of attacks in Tehran that included suicide bombers and teams of gunmen.

A U.S. service member was killed Wednesday during operations in Afghanistan, the Defense Department announced.

The Air Force's refueling operations for the Saudi-led coalition striking Yemen could end if some lawmakers have their way.

President Obama will address the nation tonight to announce the U.S. will be leading a multinational effort to destroy ISIL.

The costs of the U.S. campaign against the Islamic State are approaching $1 billion as the pace of the airstrikes increase.

The U.S. has executed airstrikes against strategic ISIS targets without the joint terminal attack controllers (JTACs) that...

The death of the pilot was the first involving a fixed-wing aircraft since the air campaign against ISIS began on Aug. 8.

Carter also suggested that he would push back against attempts to "micromanage" military policy from the White House.

The Pentagon is investigating a posting that calls on ISIS supporters in the U.S. to attack 100 US troops.

ISIS has begun using water as a weapon by restricting the flow of water from a dam on the Euphrates River in Ramadi to...