U.S. Sailors on the guided missile destroyer USS Truxtun (DDG 103), foreground, handle cargo during a replenishment at sea with the dry cargo and ammunition ship USNS Robert E. Peary (T-AKE 5) in the Persian Gulf Oct. 1, 2014, as the Truxtun supports operations in Iraq. 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. (U.S. Navy photo by Mass Communication Specialist 3rd Class Scott Barnes/Released)