During the final battles on World War II's Western Front, the legendary German Tiger I heavy tank clashed with the brand-new M26 Pershing fielded by the United States. The Tiger I had earned a formidable reputation by the end of 1944, although its non-sloped armour and poor mobility meant it was being superseded by the Tiger II or 'King Tiger'. While the Tiger I had been in the front lines since 1942, the US Pershing first entered combat in late February 1945, and more than 20 Pershings would see action before war's end.