A Marine from 31st Marine Expeditionary Unit Maritime Raid Force fast ropes from a Marine Medium Tiltrotor Squadron 265 UH-1Y Venom helicopter onto the flight deck of forward-deployed amphibious assault ship USS Bonhomme Richard. Bonhomme Richard ARG and the 31st MEU are operating in the East China Sea conducting a certification exercise. CERTEX is the final evaluation of Bonhomme Richard ARG and 31st and is intended to certify their readiness to conduct joint missions.