U.S. Marines with Battalion Landing Team 2/1, 13th Marine Expeditionary Unit (MEU), shield a simulated casualty from the debris of a U.S. Marine Corps MV-22 Osprey during Composite Training Unit Exercise (COMPTUEX) at Marine Corps Air Ground Combat Center Twentynine Plams, California, Oct. 30, 2015. COMPTUEX provides the MEU ARG the opportunity to integrate naval training while also allowing focused, mission-specific training and evaluation for the Marines and their Navy counter parts. (U.S. Marine Corps photo by Cpl. Briauna Birl)