Brotherhood and Unity

Brotherhood and unity was a popular slogan of the Communist Party of Yugoslavia that was coined during the Yugoslav People's Liberation War (1941–45), and which evolved into a guiding principle of Yugoslavia's post-war inter-ethnic policy. In Slovenia, the slogan "Brotherhood and Peace" (bratstvo in mir) was used in the beginning.

After the invasion of Yugoslavia by Axis forces in April 1941, the occupying powers and their helpers sought to systematically incite hatred among the many national, ethnic and religious groups of Yugoslavia. The Yugoslav Communist Party successfully publicized the brotherhood and unity of Yugoslavia's nations (narodi) and national minorities (nacionalne manjine, later renamed to narodnosti) in their struggle against the fascist enemy and domestic collaborators. The decision of the second session of AVNOJ on the federalization of Yugoslavia in 1943 was regarded as the recognition of this Brotherhood and Unity principle.

After the war, the slogan designated the official policy of inter-ethnic relations in the Socialist Federal Republic of Yugoslavia, as embodied in its federal constitutions of 1963 and of 1974. The policy prescribed that Yugoslavia's nations (Serbs, Macedonians, Croats, Slovenes, Montenegrins, Muslims) and national minorities (Albanians, Hungarians, Romanians, Bulgarians, Jews, Italians, and others) are equal groups that coexist peacefully in the federation, promoting their similarities and interdependence in order to overcome national conflicts and hatred. Every individual was entitled to the expression of their own culture, while the ethnic groups had an oath to one another to maintain peaceful relations. Citizens were also encouraged and allowed to declare their nationality as Yugoslav, which usually polled at 10%. The policy also led to the adoption of national quota systems in all public institutions, including economic organizations, in which national groups were represented by their republic's or province's national composition.

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