What was the German army's goal at the Battle of the Bulge?

Hitler contrived the Ardennes counteroffensive, more commonly known as the Battle of the Bulge, after the collapse of his army in France during the summer of 1944. He received inspiration from a similar operation through the Ardennes region to take France in 1940. This time, Hitler’s goal would be to disturb communication lines and transportation centers of the Allied forces in Liege and Antwerp. To do this, he would need to split the U. S. Twelfth Army Group and the British Twenty-first Army Group. In other words, the German army needed to create a "bulge" in the Allied line.