1 April 1945: M18 Hellcat of the 824th Tank Destroyer Battalion firing its 76mm main gun in Wiesloch, Germany, in support of the 2d Battalion/397th Infantry Regiment. These small, lightly-armored, but heavily armed and nimble "TDs" depended on their speed for survival. With a top speed of about 55 mph, they were the fastest armored fighting vehicles in the world well into the 1960s, and even today would not be outpaced by most contemporary tanks! The longevity of the design attests to its excellence, as M18s were still in use by the South Korean armed forces in the 1980s, and are still being used by certain of the former Yugoslav republics today.
US Army Signal Corps photo, contributed by Ray Denman, L/397th Infantry Regiment.