A B-52 Stratofortress assigned to the 96th Bomb Squadron Barksdale Air Force Base, Louisiana, prepares to refuel with a KC-135 Stratotanker assigned to the 465th Air Refueling Squadron, Tinker AFB, Oklahoma, above the Rocky Mountains, Dec. 13, 2021. Aerial refueling allows aircraft to travel vast distances without landing to bring airpower anytime, anywhere around the world.