Thus, after the Tehran Conference the Partisans received official recognition as the legitimate national liberation force by the Allies, who subsequently set up the RAF Balkan Air Force (under the influence and suggestion of Brigadier-General Fitzroy Maclean) with the aim to provide increased supplies and tactical air support for Marshal Tito's Partisan forces. During a meeting with Franklin D. Roosevelt and the Combined Chiefs of Staff of 24 November 1943, Winston Churchill pointed out that: