Pursuant to the 1947 Treaty of Peace with Italy the islands of Cres, Lastovo and Palagruža and the cities of Zadar and Rijeka and most of Istria went to communist Yugoslavia and Croatia, while carving out the Free Territory of Trieste (FTT) as a city-state. The FTT was partitioned in 1954 as Trieste itself and the area to the north of it were placed under Italian control, and the rest under Yugoslav control. The arrangement was made permanent by the Treaty of Osimo in 1975. The former FTT's Yugoslav part was partitioned between Croatia and Slovenia, largely conforming to the area population's ethnic composition.
Pursuant to the 1947 Treaty of Peace with Italy the islands of Cres, Lastovo and Palagruža and the cities of Zadar and Rijeka and most of Istria went to communist Yugoslavia and Croatia, while carving out the Free Territory of Trieste (FTT) as a city-state. The FTT was partitioned in 1954 as Trieste itself and the area t.o the north of it were placed under Italian control, and the rest under Yugoslav control. The arrangement was made permanent by the Treaty of Osimo in 1975 The former FTT's Yugoslav part was partitioned between Croatia and Slovenia, largely conforming to the area population's ethnic composition.