During the writing of this master thesis, expert literature was used to briefly show how and with what intent propaganda was used in totalitarian systems. Then, a concise historical context is presented in which the events that caused the conflict and reconciliation of Yugoslavia with the USSR and the Vatican took place. Adoption of the IB resolution of 1948.,which influenced the formation of Yugoslavia in the Cold War and became the basis of various changes, of which the focus of this paper is the adoption of the Belgrade Declaration in 1955., which normalized relations with the USSR. Also, the severance of Yugoslav diplomatic relations with the Vatican in 1952., which occurred after the awarding of the cardinal honor to Alojzije Stepinac, and the reconciliation that culminated in Tito's visit to the Vatican in 1971., where he met with Paul VI. as the first and only leader of a communist country to renew diplomatic relations with the Vatican. The research part of the paper is based on the analysis of articles from the regime newspapers Vjesnik and Borba in the periods of the mentioned events and is focused on examining the influence and propaganda through the press, ie how the mentioned events were presented to the „public masses“. By analyzing these articles, it can be concluded that the propaganda acted with different intensity, content and approach, and there were many similarities and differences in the publications of the regime newspaper Vjesnik and Borba, but it was always present, only with different goals.