Former dog sentry handler Richard Cunningham shared a history about well-trained dogs as a new kind of warfare. In the Vietnam War about 350 dogs were killed in action and 263 handlers were killed. When U.S. forces exited from Vietnam only 200 of the dogs made it back to the states. "I would wager that 90 percent of American combat troops killed in action during the Vietnam War never saw their killers. Whether it was a sniper at 200 yards, a rocket fired into a base camp or an attack from a...