 Complete the following phrase:  From London, the Yugoslav government-in-exile supported the struggle of the royalist forces and appointed General Mihailović as Chief Minister of War. However, the importance of the Partisans pushed the allied forces to trust the Communists and give increasingly limited help to Mihailović, who was accused of collaborating with the Axis powers to shoot communist guerrillas. After the Tehran Conference 1943, the Allies finally broke their ties with the Chetniks, forcing the Yugoslav government-in-exile to recognize the preeminence of the Partisans. In June 1944, Prime Minister Ivan Šubašić officially appointed Marshal Tito as the head of the Yugoslav resistance and Mihailović was dismissed. In October 1944, Churchill and Stalin concluded an 