War propaganda, as all historical experience testifies, is a means of preparation for war of aggression, and is therefore also a crime. The International Military Tribunal at Nuremberg, which tried the major war criminals of the Hitler regime, established that war propaganda is one of the means of promoting war, thus confirming the criminal nature of war propaganda. This issue was specifically emphasized in the United Nations General Assembly resolution of November 3, 1947, denouncing war propaganda: "The General Assembly condemns all forms of propaganda, regardless of the country in which it is carried out, which is either designed or likely to provoke or encourage any threat to the peace, breach of the peace or act of aggression." The main objective of the research consists in trying to demonstrate the necessity and usefulness of criminalizing the crime of war propaganda worldwide. In order to achieve the purpose and objectives of the given paper, several research methods were used, such as: - the logical method; - the juridical-comparative method; - the historical method; - the analytical method.