Furthermore , after the war was created the Free Territory of Trieste in north-western Istria : in the years following the division of the territory between Italy and Yugoslavia , up to 40,000 Istrian Italians chose to leave the Yugoslav `` B zone '' and move to the `` A zone '' or Italy for various reasons - some were intimidated into leaving and some simply preferred not to live in Tito 's Yugoslavia . Furthermore , after the war was created the Free Territory of Trieste in north-western Istria : in the years following the division of the territory between Italy and Yugoslavia , up to 40,000 Istrian Italians chose to leave the Yugoslav `` B zone '' and move to the `` A zone '' or Italy for various reasons - some were intimidated into leaving and some simply preferred not to live in Josip Broz Tito 's Yugoslavia .