A U.S. Air Force KC-10 Extender aircraft refuels an F-22 Raptor aircraft over an undisclosed location Sept. 26, 2014, before strike operations in Syria.
President Barack Obama authorized humanitarian aid deliveries to Iraq as well as targeted airstrikes to protect U.S. personnel from extremists known as the Islamic State in Iraq and the Levant. U.S. Central Command directed the operations. (DoD photo by Tech. Sgt. Russ Scalf, U.S. Air Force/Released). Original public domain image from Flickr