 Complete the following phrase:  While there were close ethnic, historic, linguistic and religious links between population of Yugoslavia and Bulgaria two states found themselves on the opposing sides in the period after the end of World War I. After the creation of Yugoslavia the newly formed Kingdom of Yugoslavia was a status quo state which sought to consolidate success of the South Slavic unification movement while Bulgaria was revisionist state whose leaders believed that their country had a right to some parts of Yugoslava - particularly Vardar Banovina. Similarly to the situation with Kingdom of Serbia in the 