The thesis presents an analysis of the actions of Ante Pavelić in the period from the end of the Second World War (1945) to 1953. It relies on a variety of available sources, primarily archival records, including well-known and easily accessible data, but also documents that have not been used in previous research on the subject. Among others, the materials used come from: the Croatian State Archives (HDA) in Zagreb, i.e. holdings of the Republican Ministry of Internal Affairs of the Socialist Republic of Croatia, the State Security Service, the personal records of Ante Pavelić (Madrid), and the records of American and British national archives (National Archives and Records Administration in Washington and The National Archives, Public Record Office in London). The thesis mainly follows the actions of Ante Pavelic in a chronological fashion, starting from 1945 when the end of both the Independent State of Croatia and of the Second World War signal a new period for the state's former leader, who is forced to emigrate for a second time. The thesis presents Pavelić’s hiding in Austria after leaving Zagreb and his transition to Italy. This section stresses the role of Western intelligence agencies and of the Catholic Church, but also Pavelić’s own involvement in his hiding and his view of the socalled Kavran action. With Pavelić’s move to Argentina, the focus of his action shifts to writing and publishing while his authority among the political migrants remains intact. Special attention is given to Pavelić’s texts that deal with subjects which continued to interest him throughout his political career: from Pavelić’s nationalistic perspective communism, Yugoslavianism, the politics of the Croatian Peasant Party (HSS) and the relationship between Western powers and the new communist Yugoslavia were a permanent source of inspiration.