摘要:The idea in propaganda occupies an important place and is often the main component of the information content of centralized and mass propaganda to attract attention from any audience. During the First World War, in many countries participating in the military conflict, propaganda was based on a specific idea, the postulates of which served as a management function in shaping the assessment and attitude of a wide audience to the "ally" and the "enemy", as well as in identifying their own role in the life of the country and activities a ruler or leader seeking to protect public and defend state interests, aimed at achieving understanding of them by the broad masses. Along with the ideas of the "commonwealth of nations" in Great Britain and "sacred unity" in France, the idea of "unity of the Slavs" in Russia served not only as a motivation, but also reflected the elements of uniting all the inhabitants of the country (Russia) with people living in neighboring states (for example, the Serbs). Researchers note in their works the important role of ideology in uniting people in the face of an "external threat", but do not pay attention to the specifics of the content of the idea of "unity of the Slavs" in the process of forming the "image of the enemy" in relation to the ruler, state and people of the "enemy country". In this regard, the author aims to consider the idea of "unity of the Slavs" in Russian propaganda in order to highlight its features. Since a person simultaneously lives in both the symbolic and the real world, where each person reacts to the perception of information, and not to reality, the author seeks to answer the question about the role of this idea in motivating the population to fight the “enemy”. As a result of the study, it can be concluded that the idea of "Slavic unity" in Russian propaganda should have motivated Russians to fight against "external aggression" and served as a determinant of the "enemy object", and it also separated all "Slavic" from all "German" and even "Turkish" during the military conflict.