First Lt. Edmund Duvall, 7th Airlift Squadron pilot, removes an aircrew eye and respiratory protection system (AERPS) while flying in a C-17 Globemaster III during Exercise Rainier War near Moses Lake, Wash., June 6, 2018. The crew’s ability to put on AERPS gear properly was one aspect they trained on during the exercise. (U.S. Air Force photo by Senior Airman Tryphena Mayhugh)