Iran has waged war on Germany, a common enemy of the three powers. Stalin, Churchill and Roosevelt raised the issue of Iran`s special financial needs during the war and the possibility of needing assistance after the war. The three powers said they would continue to provide assistance to Iran. The Iranian government and the three powers reach an agreement on respect for Iran`s independence, sovereignty and integrity within the framework of all differences of opinion. The United States, the USSR and the United Kingdom expect Iran, together with other allied nations, to make peace after the end of the war, which was agreed after the declaration. List of agreements reached by the parties participating in the Tehran conference in 1943: the “Big Three”. From left to right: Joseph Stalin, Franklin D. Roosevelt and Winston Churchill on the portico of the Russian Embassy during the Tehran conference to discuss the European Theatre in 1943. Churchill is in uniform with a commodore. The invasion of France on June 6, 1944, took place roughly as planned, as well as the support invasion of the south of France (Operation Dragoon). On June 22, 1944, the Soviets launched a large-scale offensive against the Germans (Operation Bagration).
. Tehran had to cement the unity of the United Nations. However, discord in the Allied camp was the enemy`s main source of energy. According to Soviet history, Otto Skorzeny`s special forces worked on a plan to assassinate Churchill, Roosevelt and Stalin during the conference to be held in Tehran. It was known as Operation Big Jump. During these four days, we, the President of the United States, the British Prime Minister and the Prime Minister of the Soviet Union, met in this capital, the capital of our ally, Iran, and we marked and confirmed our common policy. The Tehran conference created tensions between the powers, especially Britain. Churchill wanted the second front to open in the Balkans and not in Western Europe, and there is some evidence that the British Empire posed a greater threat to world peace than the Soviet Union.
The leaders then turned to the conditions under which the Western Allies would open a new front through the invasion of northern France (Operation Overlord), as Stalin had pressed it since 1941. Until then, Churchill had advocated the extension of the joint operations of British, American and Commonwealth troops in the Mediterranean, as the opening of a new Western Front was physically impossible due to the absence of existing sea routes, leaving the Mediterranean and Italy as viable destinations for 1943. It was agreed that Operation Overlord would be launched by May 1944 by American and British forces and that Stalin would support the Allies with a simultaneous large-scale offensive on the East German Front (Operation Bagration) to divert German troops from northern France.  (1) It was agreed that the maquisards in Yugoslavia should be supported as much as possible by supplies and equipment, as well as by command operations: Roosevelt secured many of his objectives during the conference.