Stubby: America's First War Dog

America's first war dog, Stubby, served 18 months 'over there' and participated in seventeen battles on the Western Front. He saved his regiment from surprise mustard gas attacks, located and comforted the wounded, and even once caught a German spy by the seat of his pants. Images and text via Wikipedia. There's also an excellent profile of Stubby by Robb Fritz over at McSweeney's.