In November 1943, Stalin met with Churchill and Roosevelt in Tehran, a location of Stalin's choosing. There, Stalin and Roosevelt got on well, with both desiring the post-war dismantling of the British Empire. At Tehran, the trio agreed that to prevent Germany rising to military prowess yet again, the German state should be broken up. Roosevelt and Churchill also agreed to Stalin's demand that the German city of Königsberg be declared Soviet territory. Stalin was impatient for the UK and U.S. to open up a Western Front to take the pressure off of the East; they eventually did so in mid-1944. Stalin insisted that, after the war, the Soviet Union should incorporate the portions of Poland it occupied pursuant to the Molotov–Ribbentrop Pact with Germany, which Churchill opposed. Discussing the fate of the Balkans, later in 1944 Churchill agreed to Stalin's suggestion that after the war, Bulgaria, Romania, Hungary, and Yugoslavia would come under the Soviet sphere of influence while Greece would come under that of the West.