Bled agreement (1947)
The Bled agreement (also referred to as the "Tito–Dimitrov treaty") was signed on 1 August 1947 by Georgi Dimitrov and Josip Broz Tito in Bled, PR Slovenia, FPR Yugoslavia and paved the way for a future unification of Bulgaria and Yugoslavia in a new Balkan Federation. It also foresaw the unification of Vardar Macedonia and Pirin Macedonia and the return of Western Outlands to Bulgaria. The agreement abolished visas and allowed for a customs union. It was also the first time that Bulgaria recognized ethnic Macedonians and the Macedonian language.