German geography makes it much easier to invade (most of the country except for the far south is a relatively flat plain). And it still wasn't much fun for the

German geography makes it much easier to invade (most of the country except for the far south is a relatively flat plain). And it still wasn't much fun for the troops who had to do it in 1944 and 1945 even against a significantly weakened force fighting on multiple fronts at once