All I had to do was to cross the river, capture Brussels, and then go on to take the port of Antwerp. The snow was waist-deep and there wasn't room to deploy four tanks abreast, let alone six armored divisions. It didn't get light until eight and was dark again at four, and my tanks can't fight at night. And all this at Christmas time!
About the Ardennes Offensive, quoted in "SS: Hell on the Western Front" - Page 166 - by Chris Bishop, Michael Williams - History