An F-16 Fighting Falcon receives fuel from a KC-135 Stratotanker during a training exercise over the Adriatic Sea on Oct. 24, 2016. Aviano’s 555th and 510th Fighter Squadron’s F-16 pilots teamed up with the Utah Air National Guard’s 191st Air Refueling Squadron’s KC-135 crew for a two-week mid-air refueling training. (U.S. Air Force photo by Airman 1st Class Cory W. Bush/Released)