Hitler launched a surprise offensive in the Ardennes forest in late 1944, known as the Battle of the Bulge. The attack caught the Allies off guard and resulted in over 80,000 Allied casualties. However, the skies cleared, allowing Allied air forces to intercept German supplies and inflict over 100,000 German casualties. After the battle, Eisenhower decided the Soviets should take Berlin given their greater losses. The Soviets then advanced on Berlin, capturing the city in May 1945 after intense street-by-street fighting. With defeat imminent, Hitler committed suicide along with his mistress Eva Braun.