Staff Sgt. Bert Mantilla, 30th Security Forces Squadron conservation patrolman, tacks up Military Working Horse "Trooper" Feb. 21, 2019, at Vandenberg Air Force Base, Calif. Trooper is a 14 year old American quarter horse who entered active duty in 2010 and helps to patrol 99,600 acres of hard-to-reach Vandenberg with his patrolman.

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Photo credit: © Nelly George / Alamy / Afripics
License: Licensed
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