I remember seeing some footage of the US Army handing Leipzig over to the Russians. Many German soldiers kept fighting the Russians because they were under the impression that the Allies were going to join them in fighting the USSR, a rumor spread by many German commanders to keep their men in the fight.
Sometimes "hope" was the only thing the Germans had to hang on to. It is ironic that it was newly recruited Hitler Youth units that crushed the 2nd Armored Division's brigdehead on the Elbe and in doing so crushed the hopes of the Germans fighting the Soviets.
OUR ALLIES (May 3, 1945)
On this day the British 6th Airborne and the US 7th Armoured Division captured the north German town of Wismar. The actual capture was carried out by men of the 1st Canadian Parachute Battalion. Just outside the town were the Russian front lines from where drunken soldiers, fuelled by a mixture of vodka and rocket fuel, were flocking into town in search of wine, women and song. The main hospital in Wismar was now occupied by the Paras. That night, a group of Russian soldiers approached the main gate of the hospital and demanded that all German nurses be brought out. Told that no women were here they pushed the sentry aside and entered the courtyard. A half dressed Para pocked his head out of a window and shouted 'They are our girls, get lost'. Suddenly a shot rang out followed by the rattle of a British Sten-gun. The drunken Russians scattered as shooting broke out on both sides. It was all over in minutes, the Russians retiring to their own lines. In the cobbled courtyard of the hospital lay the bodies of six dead Soviet soldiers.