How did the allied forces finally defeat the Germans?

The Allied forces defeated the Germans through a combination of strategic military operations, overwhelming numerical superiority, and effective coordination among the United States, the United Kingdom, and the Soviet Union. Key events included the D-Day invasion in June 1944, which established a Western front, and the relentless Soviet advance from the East, culminating in the capture of Berlin in May 1945. Additionally, the Allies utilized superior resources, technology, and intelligence, ultimately leading to Germany's unconditional surrender on May 8, 1945.