Marines with 3rd Battalion, 5th Marine Regiment, 1st Marine Division, rest prior to being air-inserted during Steel Knight 17 at Yuma, Arizona, Dec. 7, 2016. Steel Knight is an annual exercise led by the 1st Marine Division that spans the Western United States and California coast.

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Size: 1886px × 1061px
Photo credit: © Conner Flecks / Alamy / Afripics
License: Licensed
Model Released: No

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