Answer:
They were not well prepared, which can be best seen from the fact that the Allies were surprised by the German attack on December 16th, 1944.
Step-by-step explanation:
As the Allied forces were progressing well after D-Day they didn't expect large counter offensive of German troops. Still, Germans wanted to make last great effort and to divide Allied troops. At the beginning they managed to surprise Allied troops, but as the time passed Allies prevailed and defeated Germans.