In November 1943, Roosevelt, Churchill, and Stalin met to discuss strategy and post-war plans at the Tehran Conference, where Roosevelt met Stalin for the first time. At the conference, Britain and the United States committed to opening a second front against Germany in 1944, while Stalin committed to entering the war against Japan at an unspecified date. Subsequent conferences at Bretton Woods and Dumbarton Oaks established the framework for the post-war international monetary system and the United Nations, an intergovernmental organization similar to Wilson's failed League of Nations.