Members of the U.S. Air Force, Navy and Marines, prepare for a medical exercise aboard an MV-22 Osprey, June 6, 2018, at Marine Corps Air Station, Okinawa, Japan. The Air Force performs joint medical exercises with other U.S. forces regularly in Okinawa to better prepare service members for real world emergencies. (U.S. Air Force photo by Senior Airman Thomas Barley)