Senior Airman Michael Terrazas, 30th Security Forces Squadron conservation patrolman, cleans dirt out of Military Working Horse "Buck’s" hoof, Feb. 21, 2019, at Vandenberg Air Force Base, Calif. Horses hooves are cleaned to ensure there are no rocks lodged inside, and to help keep out excess bacteria and dirt. (U.S. Air Force photo by Airman 1st Class Hanah Abercrombie)