Mascot Strut Lance Cpl. Chesty XV, the Marine Corps mascot, participates in an evening parade at Marine Barracks Washington in Washington, D.C., July 17, 2020. SHARE: Download: Full Size (4.15 MB) Tags: marine corps, dogs Credit: Air Force Staff Sgt. Jackie Sanders, DOD VIRIN: 200717-D-XI929-3023Y.JPG Photo Gallery