Two U.S. Air Force 7th Bomb Wing B-1B Lancers, perform air refueling training with a 92nd Air Refueling Wing KC-135 Stratotanker at Dyess Air Force Base, Texas, Aug. 13, 2019. The training mission spanned four days including 20 hours of flight time at night, where both the B-1 and KC-135 Stratotanker aircrews trained on nighttime air refueling operations. (U.S. Air Force photo by Airman 1st Class Lawrence Sena)