Going with the what if, I have to go with Slon on this one. The Western allies would have paid a heavy price for Berlin unless the Germans not put up as much of a stiff resistance and surrender to the much more lenient Western allies than the vengeful Russians. But since there were plenty of Waffen SS units there, I believe they would have fought on and the Allies would be paying a stiff price for prestige because according to the agreement, all area East of the Elbe would be under Russian control. Berlin would be evenly split as it was and the cold war would be worse since the Russians would be even more distrusting of the West since they would have gone beyond the Elbe.

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American by birth, TEXAN by the grace of GOD!