What were the major issues on the postwar settlement that emerged from

What were the major issues on the postwar settlement that emerged from the wartime conferences of the Grand Alliance? Which of these were the most controversial? Why?

What will be an ideal response?

ANSWER
The most controversial issues involved decisions on Eastern Europe (especially Poland), reparations from Germany, and the partitioning of Germany into occupation zones. The status of European colonies after the war generated some controversy as well. There was general agreement on the founding of a postwar United Nations organization.