Illuminated View Marines watch illumination shells fire from an MK 45 lightweight gun on San Clemente Island, Calif., Feb. 7, during Iron Fist, an annual exercise between U.S. and Japanese forces. SHARE IMAGE: Download Image: Full Size (1.94 MB) Tags: marine corps, iron fist 20 Photo By: Marine Corps Cpl. Patrick Crosley VIRIN: 200207-M-UY835-1389Y.JPG Photo Gallery