Originally Posted by MrFirst

If that was a "war of Germany and the Soviet Union jointly attacking Poland", then Poland and Germany were jointly attacking Czechoslovakia in 1938, as is known Germany took Sudetes, Poland - Teschen Silesia. As for siege of Lvov, the German troops left this area after Soviets approached city and the touch between two armies took place, so the "jointly besieged" is a little exaggeration, to put it mildly. And again, the Germans attacked 1 september, the Soviets 17 september. More than two weeks, where the Poland's allies were??? Why didn't they strike Germany from west? Poland itself was aggressor state which had seized Teschen from Czechoslovakia and Vilnius region from Lithuania. So, Molotov perhaps was right, calling this the "ugly creature of the Treaty of Versailles".