A Marine's Best Friend Marine Corps Cpl. Jared Royce returns from a patrol with military working dog Hugo during Steel Knight on Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Dec. 12, 2015. Steel Knight aims to prepare Marines and sailors with the 1st Marine Division and adjacent I Marine Expeditionary Force units to operate as a fully capable Marine air-ground task force. U.S. Marine Corps photo by Cpl. Will Perkins SHARE: Download: Full Size (0.59 MB) Credit: Cpl. William Perkins VIRIN: 151212-D-HQ914-021.JPG Photo Gallery