Thesis focuses on novels Ljudje pod bičem by Karel Mauser and Temna stran meseca by Mimi Malenšek. Particular attention is given to the elements of betrayal and definition of this term especially in context of struggle between partisans as revolutionary branch of resistance on one side and anti-communist bourgeois branch of politics on the other side. The first part of the paper focuses on the historical background of Slovenian territory during second world war and shortly afterwards with emphasis on different militant groups, which were founded at that time on Slovenian territory and fought each other, for their respective causes. The problematic of betrayal during the World war two is outlined. Historical part is followed by two chapters devoted to the authors. Their life stories and creative development is shown and critical responses and information about their formation is summarized. At the core of the thesis, comparativistic analysis shows a lot of common points amongst which counter-revolutionary aspect of war stands out, which is highly atypical given the timeframe of their creation. Through detailed characterization of protagonists and their view of wartime events we discover their reasoning behind their loyalty towards partisans, home guard and chetniks ... Special chapter is dedicated to historical ideas and views on the war of both novels (mention of post-war killings, crimes on both sides of civil war etc.), which are quite advanced for sixties. Due to the specifics of the battle of Turjak and relations of the two literary works to this historic event, emphasis is given on the real historical events particularly on battle of Turjak. In the conclusion betrayal is considered from several aspects. In Mauser's trilogy we deal with betrayal of nation, individual betrayal and self-betrayal. In the novel by Malenšek betrayal is considered from perspective of various militant groups and their objectives.