The AT-AT (also known as the All Terrain Armored Transport) were a series of heavily armored land vehicles used by the Galactic Empire in the original Star Wars universe.
Among the most awesome vehicles in the Empire's ground combat forces, AT-ATs were unmatched by anything in the Alliance's arsenal. At twenty meters long and over fifteen meters tall, these four-legged monsters towered over the galaxy's battlefields and resembled ancient beasts of war.