180906-Z-CG686-0002

Staff Sgt. Troy Ross checks the oil on his High Mobility Rocket Artillery System launch vehicle during a Sept. 6, 2018 preventive maintenance session at the Camp Guernsey Joint Training Center motor pool. He is assigned to A Battery, 2nd Battalion, 300th Field Artillery Regiment and preparing for mobilization next year. (U.S. Army National Guard photo by Sgt. 1st Class Jimmy McGuire)

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