A member of the U.S. Air Force Air Force Thunderbirds Demonstration Squadron approaches the boom of a KC-135 Stratotanker operated by an aircrew from the 931st Air Refueling Wing, Feb. 16, 2018. To travel nationwide, the demonstration squadron's F-16s require multiple refuelings in order to make non-stop, long-distance flights. (U.S. Air Force photo by Tech. Sgt. Abigail Klein)