Military working dogs first entered the service in 1942 to serve in the Army’s K-9 Corps. Today, these dogs, who have an actual military service record book assigned to them, are still playing an active role in searching for explosives and seizing enemies. Military working dogs have been used by the U.S. armed forces since World War I. In World War II, 436 scout dogs walked combat patrols overseas, often detecting the enemy at a 1,000 yards, long before the enemy became aware of them. Dogs continued to serve with distinction in other conflicts, such as Korea, where the Army used about 1,500 dogs, primarily for guard duty. During the Vietnam War, nearly 4,000 dogs were employed and, officially, 281 were killed in action. Today’s conflicts include dogs at every level, still serving our country, helping to protect our troops.