 Complete the following phrase:  The 19181929 period of the Kingdom of Serbs, Croats and Slovenes witnessed a decrease in the Serbian population of the region and an increase in the number of Albanians. In 1929, the state was renamed the Kingdom of Yugoslavia. The territories of Kosovo were split among the Zeta Banovina, the Banate of Morava and the Banate of Vardar. The state lasted until the 