This thesis will deal with a topic of the second Czechoslovak republic as a case of authoritarian situation, which transforms into authoritarian regime. The regime of the second republic will be compared with similar cases of interwar Portugal and Austria. Also, conditions of establishing democracy and its preservation, the influence of individual branches of the nondemocratic right on breakdown of democracy, authoritarian situation and building of authoritarian regime will be analyzed. In the end, this thesis will focus on cases of borrowing elements of fascist political style by mentioned regimes.