evidence: Prior to the Yalta Conference, the three leaders met in November 1943 in Tehran, Iran, where they coordinated the next phase of war against the Axis Powers in Europe and the Pacific. [...] In return for its support in the Pacific War, the other Allies agreed, the Soviet Union would gain control of Japanese territory it had lost in the Russo-Japanese War of 1904-05, including southern Sakhalin (Karafuto) and the Kuril Islands. [...] In addition, the Soviets promised to allow free elections in all territories in Eastern Europe liberated from Nazi occupation, including Czechoslovakia, Hungary, Romania and Bulgaria.