on May 1, 1945. In early June 1945, the Yugoslav Army retreated east of the Morgan Line, and Plavje was occupied by British and American troops. The village was thus placed on the very border between Yugoslav and Anglo-American occupation zones, and became a centre of smuggling.

Between 1947 and 1954, Plavje was part of Zone A of the Free Territory of Trieste. It remained under Anglo-American occupation until 1954, when it was ceded to the Socialist Federal Republic of Yugoslavia,