180325-N-IA905-1218 INDIAN OCEAN (March 25, 2018) The Arleigh Burke-class guided-missile destroyer USS Halsey (DDG 97) and the aircraft carrier USS Theodore Roosevelt (CVN 71) transit the Indian Ocean. Halsey and Theodore Roosevelt are underway with the Theodore Roosevelt Carrier Strike Group for a scheduled deployment in the U.S. 7th Fleet area of operations in support of maritime security operations and theater security cooperation efforts. (U.S. Navy photo by Mass Communication Specialist 3rd Class Morgan K. Nall/Released)