Hitler’s Ardennes offensive sought to push the Allies back to the Belgian port of Antwerp, and resultantly sparked some of the wars most grueling battles—Bastonge, St. Vith and The Battle of the Bulge. The Nazi counter-offensive spanned the winter months, catching the already fatigued allied forces off guard. These were, since D-Day, the darkest hours of the war. As seen on The Military Channel.