Despite being driven back from the gates of Moscow in the winter offensive, the Germans advanced again in the summer of 1942. The Red Army launched attack after attack to throw the invaders back, but nothing could stop them from overrunning southern Russia and reaching the Volga River at Stalingrad. In the bitter street fighting of autumn, the Red Army bled the Germans white. Then, as winter set in, the Soviets launched another series of offensives that regained all that they had lost.