The Battle of the Bulge.
On December 16, 1944, the German army launched what would be known as the Battle of the Bulge.
After a series of victories by the Allies, the desperate German army launched a counteroffensive that included over 200,000 German troops and 1,000 tanks.
An unlikely location.
The German plans were to push the Allied forces back, starting from a 75-mile line of dense forests and snowy terrain.
Because of the poor weather and difficult terrain, it was initially thought of as an unlikely location for a major offensive.
Although the four US divisions in the forests of Belgium and Luxembourg were outnumbered, they held off the attack long enough for reinforcements to arrive.