The UstaĆĄe (pronounced [Ă»staÊe]), also known by anglicised versions Ustasha or Ustashe, was a Croatian fascist and ultranationalist organization active, as one organization, between 1929 and 1945, formally known as the UstaĆĄa â Croatian Revolutionary Movement (Croatian: UstaĆĄa â Hrvatski revolucionarni pokret). From its inception and before the Second World War, the organization engaged in a series of terrorist activities against the Kingdom of Yugoslavia, including collaborating with IMRO to assassinate King Alexander I of Yugoslavia in 1934. During World War II in Yugoslavia, the UstaĆĄe went on to perpetrate the Holocaust and genocide against its Jewish, Serb and Roma populations, killing hundreds of thousands of Serbs, Jews, Roma, as well as Muslim and Croat political dissidents.
The ideology of the movement was a blend of fascism, Roman Catholicism and Croatian ultranationalism. The UstaĆĄe supported the creation of a Greater Croatia that would span the Drina River and extend to the border of Belgrade. The movement advocated a racially "pure" Croatia and promoted genocide against Serbsâdue to the UstaĆĄe's anti-Serb sentimentâand Holocaust against Jews and Roma via Nazi racial theory, and persecution of anti-fascist or dissident Croats and Bosniaks. The UstaĆĄe viewed the Bosniaks as "Muslim Croats", and as a result, Bosniaks were not persecuted on the basis of race. The UstaĆĄe espoused Roman Catholicism and Islam as the religions of the Croats and condemned Orthodox Christianity, which was the main religion of the Serbs. Roman Catholicism was identified with Croatian nationalism, while Islam, which had a large following in Bosnia and Herzegovina, was praised by the UstaĆĄe as the religion that "keeps true the blood of Croats."