Civil service mariners aboard joint high-speed vessel USNS Spearhead (JHSV 1) conduct rescue boat training during a man-overboard drill. Spearhead, the U.S. Navy's first-in-class joint, high-speed vessel, is on its maiden deployment supporting theater security cooperation efforts in the U.S. 6th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist Seaman Justin R. DiNiro/Released)