Air Force Lt. Col. Dirk Lough performs a pre-flight inspection on an F-15C Eagle fighter aircraft before an afternoon sortie during Sentry Aloha 18-01 at Joint Base Pearl Harbor-Hickam, Hawaii, Jan. 11, 2018. Lough is a pilot assigned to the California Air National Guard’s 194th Fighter Squadron. Air National Guard photo by Senior Master Sgt. Chris Drudge