Refueling Mission Pennsylvania Air National Guardsman Tech. Sgt. John Henn conducts an aerial refueling of an F-16 Falcon aircraft near St. Louis, July 28, 2021. SHARE IMAGE: Download Image: Full Size (0.62 MB) Tags: national guard, air force Photo By: Air Force Tech. Sgt. Bryan Hoover VIRIN: 210728-Z-EY983-1078A.JPG Photo Gallery