The Marine Corps has a new four-legged recruit. He's Chesty the 14th, who will be the Corps' new mascot. He's the latest in a long line of English bulldogs who've served the Marines, dating back to the 1920s. He's named after "Chesty" Puller Junior, the most decorated Marine in U.S. history. Chesty will be sworn in as either a private or private first class, depending how well he does in basic training.