Airmen from the Pennsylvania and Mississippi Air National Guard perform preflight inspections in support of 25th Fighter Squadron A-10 Thunderbolt II’s conducting a routine training mission at Andersen Air Force Base, Guam, Aug. 19, 2020. The Air National Guard fills the need for in-air refueling so that missions can continue to operate in the Indo-Pacific. (U.S. Air Force photo by Senior Airman Michael S. Murphy)