200421-M-TV413-530 OKINAWA, Japan (April 21, 2020) Hospital Corpsman 3rd Class Francis Josh Macasieb, left and Hospital Corpsman 2nd Class David Cagua, with Bravo Company, 3rd Light Armored Reconnaissance, currently assigned to 3rd Marine Division, conduct casualty evacuation (CASEVAC) drills in Okinawa, Japan, April 21, 2020. CASEVACS are used to quickly extract patients who are in need of medical attention. (U.S. Marine Corps photo by Cpl. Timothy Hernandez/Released)