 The divisions changed over time to reflect losses of territory to Ottoman conquest and subsequent liberation of the same territory, changes of political status of Dalmatia, Dubrovnik, and Istria.The traditional division of the country into counties was abolished in the 1920s when the Kingdom of Serbs, Croats and Slovenes and the subsequent Kingdom of Yugoslavia introduced oblasts and banovinas respectively.Communist-ruled Croatia, as a constituent part of post-World War II Yugoslavia, abolished earlier divisions and introduced municipalities, subdividing Croatia into approximately one hundred municipalities.