GSC
1st Lt. Daniel Hejde, 12th Missile Squadron ICBM combat crew commander, far left, watches as Capt. Ryan Hepler, 10th MS ICBM instructor combat crew commander, center, and 2nd Lt. Bryce Acres, deputy missile combat crew commander, complete a checklist during a simulated scenario in the MPT on Aug. 17. Hepler and Acres were chosen to represent the 10th Missile Squadron in the upcoming Global Strike Challenge. Hejde is one of two trainers for the operations portion of the Global Strike Challenge. (U.S. Air Force photo/Airman 1st Class Katrina Heikkinen)