Combat Ready Marines fire an M777 howitzer during training at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Jan. 20, 2020. SHARE IMAGE: Download Image: Small (747.52 KB)| Medium (2304 KB)| Full Size (1.39 MB) Tags: Marine Corps, Training Photo By: Marine Corps Lance Cpl. Colton Brownlee VIRIN: 200120-M-ET234-1096C.JPG Photo Gallery