United Macedonia (, Obedineta Makedonija), or Greater Macedonia (, Golema Makedonija), is an irredentist concept among ethnic Macedonian nationalists that aims to unify the transnational region of Macedonia in Southeastern Europe (which they claim as their homeland and which they assert was unjustly divided under the Treaty of Bucharest in 1913) into a single state that would be dominated by ethnic Macedonians. The proposed capital of such a United Macedonia is the city of Thessaloniki (Solun in the Slavic languages), the capital of Greek Macedonia, which ethnic Macedonians and the Yugoslav leader Josip Broz Tito had planned to incorporate into their own states (along with the hinterland of Greek Macedonia, which they came to call Aegean Macedonia). History The roots of the concept can be traced back to 1910 First Balkan Socialist Conference as a possible solution of the Macedonian Question. Georgi Dimitrov, a Bulgarian politician, writes in 1915 that the creation of a "Macedonia, which was split into three parts, was to be reunited into a single state enjoying equal rights within the framework of the Balkan Democratic Federation". In 1924, the Communist International suggested that all Balkan communist parties adopt a platform of a "united Macedonia" but the suggestion was rejected by the Bulgarian and Greek communists. In 1934 the Comintern issued an official political document, in which for the first time, an authoritative international organization has recognized the existence of a separate Macedonian people and a Macedonian language. According to the Yugoslav communist Svetozar Vukmanović, the slogan about a united Macedonia appeared in the manifesto of the HQ of the National Liberation Army of Macedonia, at the beginning of October 1943. At that time Vukmanović was sent by Tito to macedonianize the Communist struggle in Macedonia, and to give it a new ethnic-Macedonian facade. One of his main achievements was that wartime pro-Bulgarian sentiments of the local communists to be receded into pro-Yugoslavism. As result the pro-Bulgarian Regional Committee of Communists in Macedonia was dissolved and replaced by a new Communist Party of Macedonia, as part of the Yugoslav Communist Party. The Yugoslav communists recognized the separate Macedonian nationality to reduce the fears of the Macedonian Slavic population that they would continue the former Yugoslav policy of forced Serbianization. They didn't support the view that the Macedonian Slavs are Bulgarians, because that meant in practice, the area should remain part of the Bulgaria after the war. Afterwards