Marines with 2nd Combat Engineer Battalion, provide security before loading a casualty into a MV-22 Osprey during a casualty evacuation exercise at Landing Zone Penguin at Camp Lejeune, N.C., March 10, 2016. The training allowed Marines with Marine Medium Tiltrotor Squadron 365 and 2nd CEB to work together in order to be well prepared to conduct a successful CASEVAC in any situation they may encounter while deployed, to ultimately save lives. (U.S. Marine Corps photo by Lance Cpl. Erick Galera/Released) - Marines with 2nd Combat Engineer Battalion, provide security before loading a casualty into a MV-22 Osprey during a casualty evacuation exercise at Landing Zone Penguin at Camp Lejeune, N.C., March 10, 2016. The training allowed Marines with Marine Medium Tiltrotor Squadron 365 and 2nd CEB to work together in order to be well prepared to conduct a successful CASEVAC in any situation they may encounter while deployed, to ultimately save lives. (U.S. Marine Corps photo by Lance Cpl. Erick Galera/Released)