Gen. James McConville, United States Army Chief of Staff, promotes Spc. David Christen to the rank of Sergeant while visiting the 39th Infantry Brigade Combat Team's tactical operations center at the Joint Readiness Training Center, Fort Polk, La. July 21, 2021.

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Keywords: ararng, arkansas, army, center, fort, guard, joint, jrtc, national, polk, readiness, training