The Battle of the Bulge . was Germany's last battle
killed more than one million American and British troops
lasted three months
happened when Germany surrounded the Allied forces on three sides at the town of Bastogne

happened when Germany surrounded the Allied forces on three sides at the town of Bastogne.

Explanation:

As the Allies closed in on Germany from both East and West in the concluding stages of the World War, the Germans needed a new plan and so they executed an operation much like the one that saw them defeat the Allies in 1940 and enabled them capture France.

This battle led to a siege in Bastogne of the stubborn 101st Airborne Division and other units of the U.S. Army  which refused to surrender to the Germans and held the area until the U.S. Third Army reached them. The HBO miniseries, ''Band of Brothers'', covered this to some degree.