Army Sgt. Ryan Duginski, with the Tennessee Army National Guard’s H Troop, 2nd Squadron, 278th Armored Cavalry Regiment, and members of his tank crew race against the clock to replace two sections of track on an M1A1 Abrams tank while competing in the Gen. Gordon Sullivan Cup best tank crew competition at Fort Benning, Ga., Tuesday, May 3, 2016. The Sullivan Cup tests tank crews from throughout the Army on everything from gunnery to mounted land navigation, maintenance and combat casualty care in a variety of physically and mentally challenges setting to determine the Army’s best tank crew. (U

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Army Sgt. Ryan Duginski, with the Tennessee Army National Guard’s H Troop, 2nd Squadron, 278th Armored Cavalry Regiment, and members of his tank crew race against the clock to replace two sections of track on an M1A1 Abrams tank while competing in the Gen. Gordon Sullivan Cup best tank crew competition at Fort Benning, Ga., Tuesday, May 3, 2016. The Sullivan Cup tests tank crews from throughout the Army on everything from gunnery to mounted land navigation, maintenance and combat casualty care in a variety of physically and mentally challenges setting to determine the Army’s best tank crew. ( Army photo by Sgt. 1st Class Jon Soucy)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: #sullivancup, abrams, bureau, crew, cup, guard, jon, m1, military, national, photojournalism, soucy, sullivan, sullivancup, tank, tankers