At the end WW2, what major event led germany to surrender? (plz help)

After heavy fighting, Soviet forces neared Adolf Hitler's command bunker in central Berlin. On April 30, 1945, Hitler committed sui cide. Within days, Berlin fell to the Soviets. German armed forces surrendered unconditionally in the west on May 7 and in the east on May 9, 1945.

we need an attachment to see what you are talking about.