U.S. Navy Ensign Thomas Changaris reads a compass on the bridge of the guided missile cruiser USS Gettysburg (CG 64) during a straits transit in the Gulf of Oman Dec. 15, 2013. The Gettysburg was deployed as part of the Harry S. Truman Carrier Strike Group supporting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility.