Joe, a military K-9 stationed with 75th Security Force Squadron at Hill Air Force Base, Utah, lays down signaling that he sniffed out an explosive training device March 4, 2020. Joe is a single-purpose MWD, trained as an explosive detection dog. (U.S. Air Force photo by Cynthia Griggs)

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Photo by: Cynthia Griggs |  VIRIN: 200304-F-EF974-1303.JPG