U.S. Air Force Senior Airman Derek Peifer, 351st Air Refueling Squadron boom operator, makes contact with the B-52 Stratofortress, 2nd Bomb Wing Barksdale, La., over Romania, March 18, 2019. During air refueling, the boom operator communicates directly with the refueling aircraft to ensure safety and efficiency. The KC-135 mission supported the B-52 deployed to Europe as part of the Bomber Task Force rotation. (U.S. Air Force photo by Senior Airman Benjamin Cooper)