Look at the reasons why the Allies were surprised by the German attack in the Ardennes, better known as the Battle of the Bulge. 

The Battle of Bulge was the last major German offensive operation in World War 2. Yet, it caught the Western Allies by surprise. How was this possible? After all, the Allied military intelligence throughout the war was for the most part very good or even excellent. There were major successes for longer operations like the Battle of the Atlantic or rather short engagements like the Battle of Midway.

What were the reason for this? Did the Germans suddenly became sneaky or did the Allies become complacent of their victories? So, let’s find out and take a closer look.

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