Members of the Colorado Army National Guard 1st Battalion, 157th Infantry Regiment demonstrate how to attach a sling to a CH-47 Chinook helicopter during a field training exercise at the Air Force Academy, Colorado Springs, Colo., Dec. 3, 2016. The four-day-long exercise allowed Soldiers to sharpen thier skills while working with other sections of the 1/157th Infantry as well as other units to complete the mission. ( Army National Guard photo by Spc. Jennifer Lena)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: cong