エンゲルベルト・ドルフース
Authoritarian conservatism or reactionary conservatism refers to autocratic regimes that center their ideology around conservative nationalism, rather than ethnic nationalism, though certain racial components such as antisemitism may exist. Authoritarian conservative movements show strong devotion towards religion, tradition and culture while also expressing fervent nationalism akin to other far-right nationalist movements. Examples of authoritarian conservative leaders include António de Oliveira Salazar and Engelbert Dollfuss. Authoritarian conservative movements were prominent in the same era as fascism, with which it sometimes clashed. Although both ideologies shared core values such as nationalism and had common enemies such as communism and materialism, there was nonetheless a contrast between the traditionalist nature of authoritarian conservatism and the revolutionary, palingenetic and populist nature of fascism—thus it was common for authoritarian conservative regimes to suppress rising fascist and National Socialist movements. The hostility between the two ideologies is highlighted by the struggle for power for the National Socialists in Austria, which was marked by the assassination of Engelbert Dollfuss.