Poland was moved 300 km to the West. A compromise was reached over the future government when Stalin promised that some members of the London government (pro-Western) should join the Lublin government (pro-Soviet). "The Declaration of Liberated Europe" was signed by Stalin promising free elections in Eastern Europe.
Japan: Stalin promised to help the Americans in defeating Japan and to declare war 2-3 months after the war had ended in Europe.
United Nations: A renewed attempt towards collective security was agreed upon and Molotov would attend the first meeting at San Francisco in April 1945.
Germany: Should be de-Nazified and was divided into four zones of occupation i.e. an American, Russian, British and French-zone. Berlin was also divided into different zones and the result was a Western zone within the Eastern zone. The establishment of zones of occupation had been decided at a series of conferences and the French zone was added at Yalta. The Berlin solution was probably Stalin's worst mistake because the Berlin problem would later cause major problems to the USSR. The Berlin Wall would later be the symbol of Soviet control of Eastern Europe. Germany should be governed by an Allied Control Council with veto rights for each power. The reparation issue was not solved but handed over to a Reparation Commission.
Yalta is normally considered as a "success". Agreements were made over Germany, Japan, Poland and the United Nations.