How was Nazi Germany defeated during world war 2?

Nazi Germany was defeated during World War II through a combination of military strategies and overwhelming allied forces. The turning point came with significant battles such as Stalingrad and the D-Day invasion, which weakened German positions on both the Eastern and Western Fronts. By 1945, Allied forces had encircled Berlin, leading to its capture and the unconditional surrender of Germany on May 7, 1945. This defeat was also facilitated by internal issues, including resource shortages and declining morale among German troops.