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Svetozar Markanovic was born in 1931 in Dvar (today Bosnia & Herzegovina). At the age of 15 he joined the National Liberation War (NOB) and in June 1944 he was admitted to the Union of Communist Youth of Yugoslavia.
After the war, he went to Czechoslovakia where he studied mechanical engineering. In October 1948 he joined the Communist Party of Yugoslavia (CPY).
After the war, he went to Czechoslovakia where he studied mechanical engineering. In October 1948 he joined the Communist Party of Yugoslavia (CPY).