U.S. Navy Lt. Kevin Mullins, left, assigned to the guided missile cruiser USS Gettysburg (CG 64), monitors the ships position during a man overboard drill in the Gulf of Oman Dec. 13, 2013. The Gettysburg was part of the Harry S. Truman Carrier Strike Group and was underway in the U.S. 5th Fleet area of responsibility supporting maritime security operations and theater security cooperation efforts.