Range Readiness Marines and sailors conduct a training attack on range 400 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., May 25, 2016. Marines use the complex range to test and improve combat readiness and skills. Navy photo by Petty Officer 1st Class Nathan Laird SHARE: Download: Full Size (2 MB) Tags: MARINE CORPS, MARINES Credit: Navy Petty Officer 1st Class Nathan Laird VIRIN: 160525-N-AT895-317.JPG Photo Gallery