MCAS YUMA, Ariz. -- The Marine Corps Mounted Color Guard participates in a retirement ceremony on Marine Corps Air Station Yuma, Ariz., June 22, 2018. The mounted color guard is the only equestrian color guard in the Marine Corps, and is stationed at Marine Corps Logistics Base, Barstow, California. (U.S. Marine Corps photo by Sgt. Allison Lotz)
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