Louder Marine Corps Sgt. Preston T. Brown instructs a recruit to respond louder at Marine Corps Recruit Depot in San Diego, Dec. 18, 2015. Annually, the depot trains more than 17,000 males recruited from the western recruiting region. U.S. Marine Corps photo by Sgt. Tyler Viglione SHARE IMAGE: Download Image: Full Size (0.56 MB) Photo By: Sgt. Tyler Viglione VIRIN: 151218-D-LP538-007.JPG Photo Gallery