Members of the Ellsworth Honor Guard post the colors in a memorial service conducted in the Freedom Chapel at Ellsworth Air Force Base, S.D., Nov. 12, 2013. The event was held to honor a 28th Security Forces Squadron military working dog named Arco who served in the Air Force for more than three years as a narcotics and patrol K-9. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)