U.S. Air Force Chief Master Sgt. George Mulleneix, the 173rd Fighter Wing senior member of the enlisted force for the travel to the 162nd Fighter Wing, watches early morning operations during training at the Tucson, Ariz. base, Jan. 15, 2020. The F-15s help aspiring F-16 pilots by providing dissimilar air combat training or DACT, which better prepares them for duty in the operational Air Force. (U.S. Air National Guard photo by Master Sgt. Jefferson Thompson)