A B-1B Lancer from the 37th Bomb Squadron, Ellsworth Air Force Base, S.D., edges closer to the fueling boom of a KC-46A Pegasus from McConnell Air Force Base, Kan., as part of a refueling mission May 17, 2021. The KC-46A’s primary function is air refueling and airlift, holding a maximum fuel capacity of 212,229 pounds of fuel. (Official U.S. Air Force Photo)