An F-22 Raptor is refueled by a KC-135 Stratotanker over the Nevada Test and Training Range during the U.S. Air Force Weapons School’s Deliberate Strike Night, June 16, 2016. The exercise is part of the final seven-day advanced integration portion of the school’s curriculum, testing stealth and conventional airframes’ abilities to conduct attacks during the hours after sunset. (U.S. Air Force photo/Airman 1st Class Kevin Tanenbaum)