A B-52H Stratofortress, nicknamed "Wise Guy," on the ramp at Davis-Monthan Air Force Base, Ariz., March 12, 2019. The B-52H completed phase one of its regeneration process at the 309th Aerospace Maintenance and Regeneration Group. It is being returned to service to replace a B-52 lost during takeoff in 2016. (U.S. Air Force photo by Teresa D. Pittman)