160415-D-DT527-102 MANILA, Philippines (April 15, 2016)An E4-B aircraft sits on the ramp of the Ninoy Aquino International Airport in Manila, Philippines as Secretary of Defense (SECDEF) Ash Carter and Philippine Secretary of National Defense Voltaire Gazmin return after touring the aircraft carrier USS John C. Stennis (CVN 74) as it sails the South China Sea April 15, 2016. Carter is visiting the Philippines to solidify the rebalance to the Asia-Pacific region.(U.S. Air Force photo by Senior Master Sgt. Adrian Cadiz/Released)