U.S. Air Force Tech. Sgt. Rick Poff, 307th Aircraft Maintenance Squadron crew chief, communicates with B-52 Stratofortress air crew prior to a sortie, Dec. 11, 2018 at Nellis Air Force Base, Nevada. He was on hand, along with other active-duty and Reserve Citizen Airmen maintainers, to support the the biannual Weapons School Integration exercise. (U.S. Air Force photo by Master Sgt. Ted Daigle)