article_snippet.sent: Scroll down for video .
article_snippet.sent: Great team: U.S. Army Staff SGT.
article_snippet.sent: she was the sole reason why I was living and breathing and able to come home to my son and wife.'
article_snippet.sent: The U.S. military deploys more than 500 dogs worldwide at any given time.
article_snippet.sent: Each year a few are killed in action.