When did Poland become communist?

In 1944 after Germans killed 250 thousands Varsovians in 63 days of Warsaw Uprising, it was already known that the Soviets will rule. While the Poles were fighting the Germans on one side of Vistula river, the Red Army was sitting and waiting on the other side of the river, waiting for Germans to finish the Poles. When in 1945 the whole Europe was celebrating the liberation, Poles were left alone by the Allies. At Yalta conference, US, Great Britain and Soviet Union decided about Poland's new borders and ...who the ruler will be. There was no celebration, nobody was in a mood, Poles were going from one occupation to another, this one lasted till 1989. In 1945, the Soviets set up the communist government, the country was in civil war. The new government faked elections and provoked pogroms to show the "allies" that Poles can not govern themselves. In the late 40s and 50s, thousands of soldiers of underground Polish Home Army (the largest European resistance organization in the whole ...  more