Machine Gunners From the cover of a pile of coral rock on Peleliu beach, Marine machine gunners lay withering fire on enemy positions with a .30-caliber air-cooled gun, circa September 1944. SHARE: Download: Full Size (1.51 MB) Tags: World War II, Micronesia, Medal of Honor, Marine Corps, medal of honor monday Credit: Marine Corps VIRIN: 230912-M-D0439-066Y.JPG Photo Gallery