U.S. Air Force Senior Airman Robert Shedd, left, and Staff Sgt. Robert Gallagher, both 7th Aircraft Maintenance Squadron B-1B Lancer crew chiefs, prepare to marshal a B-1B Lancer during Exercise Constant Vigilance 16, April 10, 2016, at Dyess Air Force Base, Texas. Training and exercise participation of all Airmen is critical to Air Force Global Strike Command’s ability to respond quickly and effectively to real-world situations. (U.S. Air Force photo by Airman 1st Class Rebecca Van Syoc/Released)