U.S. Air Force Senior Airman Estaban Miranda, 144th Operation Support Flight’s aircrew flight equipment technician, performs a mask fit test on Capt. Corbett Sambol, 194th Fighter Squadron pilot, prior to the morning mission April 1, 2017 during Sentry Aloha 17-03. Sentry Aloha is an Air Guard led exercise that provides a current, realistic, and integrated training environment to the U.S. Air Force and joint partners. (Air National Guard photo by Senior Master Sgt. Chris Drudge)