151211-N-WK391-013 PACIFIC OCEAN (Dec. 11, 2015) Flight crew prepare to unhook chocks and chains from an MV-22 Osprey assigned Medium Tilt Rotor Squadron (VMM) 166 (Reinforced) as it prepares to take off from the flight deck of amphibious transport dock ship USS New Orleans (LPD 18), which is part of the Boxer Amphibious Ready Group (ARG). The Boxer ARG is off the coast of Southern California completing a certification exercise (CERTEX). CERTEX is the final evaluation of the 13th Marine Expeditionary Unit (13th MEU) and Boxer ARG prior to deployment and is intended to certify their readiness to conduct integrated missions across the full spectrum of military operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Brandon Cyr/ Released)