Ruck march honors 9/11 responders
Tech. Sgt. Timothy Lincoln, 775th Civil Engineer Squadron, leads a group of participants at the start of a 9.11-mile ruck march Sept. 11, 2017, at Hill Air Force Base, Utah. Participants completed physically demanding exercises at each station with a combined total of 403 repetitions, which represented the total number of first responders who gave their lives on 9/11. (U.S. Air Force photo by Todd Cromar)

Download Image: Full Size (0.42 MB)
Photo by: Todd Cromar |  VIRIN: 170911-F-LS255-0111.JPG