K9 one, one: nothing more vital to battlefield survival
Navy Petty Officer 1st Class Valdo, working dog, wears a Purple Heart Medal on his collar. Valdo and his handler, Petty Officer 2nd Class Ryan Lee, were both wounded by shrapnel in a rocket propelled grenade attach in Bala Murghab District, Badghis Province, Afghanistan, April 4, 2011. Valdo fully recovered after five surgeries, served another year, and retired with a Purple Heart Medal, and now lives with Lee in New Jersey. (U.S. Air Force photo by Master Sgt. Kevin Wallace/RELEASED)