Smoky
“Smoky was a 4 lb, 7 inch tall, Yorkshire Terrier who served in World War II. In 1944 Smoky was found in a foxhole in the jungles of New Guinea by an American soldier who brought her back to camp and sold her to Corporal William A. Wynne for $6.44.
“For the next 2 years Smoky lived a soldiers life. Because she was not an official military dog, she did not get dog food or medical care. She shared Wynne’s meals and slept beside him in his tent. The little dog even flew 12 air/sea rescue and photo reconnaissance missions, secured in the soldiers backpack. She survived 150 air raids and saved Wynne by warning him of incoming shells.” – Source: DogGuide.net