King Peter was succeeded by his son, Alexander, in August 1921. Serb centralists and Croat autonomists clashed in the parliament, and most governments were fragile and short-lived. Nikola Pašić, a conservative prime minister, headed or dominated most governments until his death. King Alexander established a dictatorship in 1929 with the aim of establishing the Yugoslav ideology and single Yugoslav nation, changed the name of the country to Yugoslavia and changed the internal divisions from the 33 oblasts to nine new banovinas. The effect of Alexander's dictatorship was to further alienate the non-Serbs living in Yugoslavia from the idea of unity.