Rally in the Rockies 2021: Day 4 Retrograde
A C-130H Hercules takes off from Rifle Airport, Colorado, carrying equipment and personnel to complete the Rally in the Rockies 2021 exercise, Sept. 16, 2021. This particular event tested how quickly personnel and equipment could be loaded from a forward operating base and repositioned to a main operating base as part of retrograde training. (U.S. Air Force photo by Maj. Ashley Walker)