U.S. Air Force Staff Sgt. Michael Pruitt, 144th Aircraft Maintenance Squadron crew chief, refuels an F-15C Eagle from the California Air National Guard’s 144th Fighter Wing after the morning sortie during Sentry Aloha 17-03 April 1, 2017. 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)