U.S. Marines with Lima Company, Battalion Landing Team 3rd Battalion, 1st Marine Regiment, 15th Marine Expeditionary Unit, execute a vertical raid during Composite Training Unit Exercise (COMPTUEX) March 29, 2015. These Marines departed the USS Essex (LHD 2), off the coast of San Diego, in MV-22B Ospreys and landed in Marine Corps Air Ground Combat Center Twentynine Palms, Calif. This training ensures they are prepared for what they may encounter during deployment. (U.S. Marine Corps video by Cpl. Anna Albrecht/ Released)