The issue that caused the most conflict at the Yalta Conference concerned:?

Question

A. setting up the United Nations
B. Poland's type of postwar government
C. Soviet involvement in the war with Japan
D. trying the Germans and Japanese for war atrocities

Answer 1

B.

The formation of United Nations (A) was not a point of contention. Stalin, at the request of FDR, committed to participating in the United Nations, on the condition that that each of the five permanent members of the Security Council would have veto power.

Soviet involvement in the war with Japan (C) was promised by Stalin within 90 days from the defeat of Germany.

Trials of war cirminals (D), as far as I remember, were discussed repeatedly, in Tehran (1943), Yalta (1945) and Potsdam (1945). During the Tehran conference, Stalin is said to have proposed to summarily execute 50,000 to 100,000 career German officers. FDR dismissed it as a joke, and it never came up again, especially given Churchill's professed distaste for "the cold-blooded execution of soldiers who fought for their country."

Poland, however, was another matter altogether. At the time of the conference, it was largely under the Soviet control. In Yalta, it was agreed to reorganize the pro-Soviet Provisionary Polish Government through the inclusion of other groups such as the Polish Provisional Government of National Unity, but not the pro-Western Polish government-in-exile that had evacuated in 1939 and was based in London at the time...

Answer 2

The conference is chiefly remembered for its treatment of the Polish problem: the western Allied leaders, abandoning their support of the Polish government in London, agreed that the Lublin committee--already recognized as the provisional government of Poland by the Soviet masters of the country--should be the nucleus of a provisional government of national unity, pending free elections. But while they also agreed that Poland should be compensated in the west for the eastern territories that the U.S.S.R. had seized in 1939, they declined to approve the Oder-Neisse line as a frontier between Poland and Germany, considering that it would put too many Germans under Polish rule.