re the joint forces commander and also the military governors. Zone A covered almost the same area of the current Italian Province of Trieste, except for four small villages south of Muggia, which were given to Yugoslavia after the dissolution of the Free Territory in 1954. Zone B, which remained under the military administration of the Yugoslav People's Army, was composed of the north-westernmost portion of the Istrian peninsula, between the river Mirna and the Debeli Rtič cape.
In 1954, the Free Territory of Trieste was dissolved. The vast majority of Zone A, including the city of Trieste, was ceded to Italy. Zone B became part of Yugoslavia, along with four villages from the Zone A (Plavje, Spodnje Škofije, Hrvatini, and Jelarji), and was divided among the Socialist Republic of Slovenia and Croatia. The annexation of Trieste to Italy was officially announced on 26 October 1954, and was welcomed by the majority of the Trieste population.
The final border line with Yugoslavia, and the status of the ethnic minorities in the areas, was settled in 1975 with the Treaty of Osimo. This line is now the border between Italy and Slovenia
