After the end of World War II, the creation of People's Republic of Macedonia and of a new Macedonian language, it started a process of ethnogenesis and distinct national Macedonian identity was formed. The new Yugoslav authorities began a policy of removing of any Bulgarian influence, making Macedonia connecting link for the establishment of new Balkan Federation and creating a distinct Slavic consciousness that would inspire identification with Yugoslavia. After World War II the ruling Bulgarian Communists declared the population in Bulgarian Macedonia as ethnic Macedonian and teachers were brought in from Yugoslavia to teach the locals in the new Macedonian language. The organizations of the IMRO in Bulgaria were completely destroyed. Former IMRO members were hunted by the Communist Militsiya and many of them imprisoned, repressed, exiled or killed. Also internments of disagreeing with this political activities people at the Belene labor camp were organized. Tito and Georgi Dimitrov worked about the project to merge the two Balkan countries Bulgaria and Yugoslavia into a Balkan Federative Republic according to the projects of Balkan Communist Federation. This led to the 1947 cooperation and signing of Bled Agreement. It foresaw unification between Vardar Macedonia and Pirin Macedonia and return of Western Outlands to Bulgaria. They also supported the Greek Communists and especially Slavic-Macedonian National Liberation Front in the Greek Civil War with the idea of unification of Greek Macedonia and Western Thrace to the new state under Communist rule. According this project the bourgeoisie of the ruling nations in the three imperialist states among which Macedonia was partitioned, tried to camouflage its national oppression, denying the national features of the Macedonian people and the existence of the Macedonian nation. The policies resulting from the agreement were reversed after the Tito-Stalin split in June 1948, when Bulgaria, being subordinated to the interests of the Soviet Union took a stance against Yugoslavia. This policy for projection and recognition of regional countries and nations since the 1930s as for example Macedonia, had been the norm in Comintern policies, displaying Soviet resentment of the nation-state in Eastern Europe and of the consequences of Paris Peace Conference. With the 1943 dissolution of Comintern and the subsequent advent of the Cominform in 1948 came Joseph Stalin's dismissal of the previous ideology, and adaptation to the conditions created for Soviet hegemony during the Cold War. The Dimitrov's sudden death in July 1949 was followed by a "Titoists" witchhunt in Bulgaria.