Howitzer Fire Marine Corps Cpl. Manuel Bautista, a field artillery cannoneer with Battery A, 1st Battalion, 11th Marine Regiment, 1st Marine Division, fires an M777 towed 155 mm howitzer during a live-fire defense simulation at the Marine Corps Air Ground Combat Center Twentynine Palms, Callif., March 30, 2021. SHARE: Download: Full Size (6.05 MB) Credit: Marine Corps Cpl. Jamin M. Powell VIRIN: 210330-M-LO635-1009.JPG Photo Gallery