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A participant of the 7th annual Rugged Terrain Obstacle Run low crawls through mud April 6, 2019, in the Grafenwoehr Training Area, Germany. (Sgt. Christopher Stewart/Army)
A participant of the 7th annual Rugged Terrain Obstacle Run low crawls through mud April 6, 2019, in the Grafenwoehr Training Area, Germany. (Sgt. Christopher Stewart/Army)