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U.S. Army Command Sgt. Maj. Shelita Taylor, the command sergeant major of the 400th Military Police Battalion, U.S. Army Reserve, dons and clears her gas mask during a team-building ruck march held by the 200th Military Police Command during a 'CSM Huddle' in Scottsdale, Ariz., Sept. 16, 2017. (Master Sgt. Michel Sauret/Army)