180419-N-RI884-0262 PHILIPPINE SEA (April 19, 2018) F-35B Lightning II aircraft assigned to the "Green Knights" of Marine Fighter Attack Squadron (VMFA) 121 maneuver on the flight deck of the amphibious assault ship USS Wasp (LHD 1) following a tactical recovery of aircraft and personnel during a certification exercise (CERTEX). CERTEX is the final evaluation in a series of training exercises which ensures readiness for crisis response throughout the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 1st Class Daniel Barker/Released)