Sure Fire An M1A1 Abrams main battle tank fires its main gun during a pre-deployment training exercise at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Nov. 9, 2018. SHARE: Download: Full Size (1.29 MB) Tags: Marines Credit: Marine Corps Lance Cpl. Dalton S. Swanbeck VIRIN: 181109-M-EC058-0887C.JPG Photo Gallery