Editing Informbiro period (section)

==Background==
{{multiple image
 | width = 200
 | image1 = Josip Broz Tito uniform portrait.jpg
 | alt1 = Photograph of Josip Broz Tito
 | image2 = JStalin Secretary general CCCP 1942 flipped.jpg
 | alt2 = Photograph of Joseph Stalin
 | footer = The Yugoslav–Soviet split became open through an exchange of three letters between Stalin and Tito in early 1948.
}}
{{main|Tito–Stalin split}}
Relations between [[Joseph Stalin]] and [[Josip Broz Tito]] were often strained during [[World War&nbsp;II]] as the [[Soviet Union]] and the [[Yugoslav Partisans]], a resistance movement established following [[Axis occupation of Yugoslavia]], pursued divergent interests other than defeating the [[Axis powers]] and promoting [[Communism|Communist ideas]].{{sfn|Banac|1988|p=4}} Nonetheless, Soviet advisers arrived in Yugoslavia in the autumn of 1944 and promised economic and military assistance—specifically arms and aid to the [[defence industry]]. By February 1947, little aid had arrived.{{sfn|Woodward|1995|p=81}} In September 1947, when the Soviets formed the [[Cominform|Information Bureau of the Communist and Workers' Parties]], also known as the Cominform, they insisted on headquartering it in the Yugoslav capital of [[Belgrade]], expanding their agents' access to Yugoslavia.{{sfn|Auty|1969|p=165}}

After the war, Stalin and Tito, and by extension the USSR and [[Socialist Federal Republic of Yugoslavia|Yugoslavia]], had increasingly divergent objectives and priorities in the areas of foreign relations, economic policies, and even in ideological approaches to the development of a [[Communist society]].{{sfn|Perović|2007|pp=34–35}} Despite these conflicting objectives, Stalin supported Yugoslav policy towards Albania, which treated it like a Yugoslav satellite state.{{sfn|McClellan|1969|p=128}} The Soviet–Yugoslav relations took a significant turn to worse when [[People's Republic of Bulgaria|Bulgaria]] and Yugoslavia signed a [[Bled agreement (1947)|friendship and mutual assistance treaty in Bled]] in August 1947. The agreement, calling for greater integration between the two countries, was negotiated without consulting the USSR, leading Soviet Foreign Minister [[Vyacheslav Molotov]] to denounce it.{{sfn|Perović|2007|p=52}} The conflict gradually grew until 1948 when it culminated in the [[Tito–Stalin split]]—pitting Yugoslavia against the USSR, supported by the rest of the [[Eastern Bloc]] through the Cominform, in the period of conflict or at least tense relations with all pro-Western Yugoslav neighbours, the [[United Kingdom]] and the [[United States]].{{sfn|Perović|2007|pp=52–62}}
 
Following the military conquests of [[Trieste]] and a part of [[Carinthia]] in the final days of World War&nbsp;II, Tito pressed territorial claims against [[Austria]]—specifically Carinthia and [[Burgenland]] hoping for a corridor to [[Czechoslovakia]]—and against [[Italy]] in the [[Julian March]] area, including Trieste. The immediate vicinity of the city was organised as the [[Free Territory of Trieste]] under divided military administration by Yugoslavs and [[Allies of World War II|Western Allies]], while the latter controlled the city itself. Following the Tito–Stalin split, the Soviets withdrew their support for Yugoslavs in further resolution of the Trieste dispute,{{sfn|Ramet|2006|p=173}} and switched from backing Yugoslavia in favour of Austria.{{sfn|Banac|1988|p=189}} Since 1947, Yugoslavia provided increasing aid to the [[Democratic Army of Greece]] (Δημοκρατικός Στρατός Ελλάδας, ''Dimokratikós Stratós Elládas'', DSE) in the [[Greek Civil War]].{{sfn|Perović|2007|pp=45–46}} Even after Stalin obtained assurances from Yugoslav leadership that the aid would cease, Tito informed [[Nikos Zachariadis]] of the [[Communist Party of Greece]] that the DSE could count on further help.{{sfn|Perović|2007|p=56}}