Staff Sgt. Christopher Berry (front) and Airman 1st Class Bryan Nagy, both from the 36th Communications Squadron, run 2.3 miles to Checkpoint 6 during the Warrior Day competition Jan. 25 at Andersen Air Force Base, Guam. The competition simulates challenges Airmen may face in combat. (U.S. Air Force photo/Tech. Sgt. Michael Boquette)