180917-N-OY799-0017 PHILIPPINE SEA (Sept. 17, 2018) The aircraft carrier USS Ronald Reagan (CVN 76) leads the Ronald Reagan Carrier Strike Group, including the Ticonderoga-class guided-missile cruisers USS Antietam (CG 54) and USS Chancellorsville (CG 62) and the Arleigh Burke-class guided-missile destroyers USS Benfold (DDG 65) and USS Milius (DDG 69), during a photo exercise for Valiant Shield 2018. The biennial, U.S. only, field-training exercise focuses on integration of joint training among the U.S. Navy, Air Force and Marine Corps. This is the seventh exercise in the Valiant Shield series that began in 2006. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kenneth Abbate/Released)