Marine Corps Cpl. Austin Meekins, standing, waits inside an MV-22 Osprey aircraft to transport a simulated casualty during a casualty evacuation exercise at landing zone Penguin on Camp Lejeune, N.C., March 10, 2016. Meekins is a crew chief assigned to Marine Tiltrotor Squadron 365. Marine Corps photo by Lance Cpl. Erick Galera