The article is devoted to the substantiation of the author’s model of foreign cadets’ entry into the environment of Russian military universities in the conditions of globalization. The relevance of the presented problematics is connected with the radical opposition of the available theoretical models of adaptation in the practice of military universities. One of them reflects the tendency to adaptation, the conditions of which are set by radical re-quirements of military discipline, ideas about military brotherhood, and the task of educating patriots of their states, while the other one calls for the protection and preservation of the individuality of cadets of different na-tionalities. The authors propose a solution to these contradictions, which can lead to the confrontation between “their own” and “strangers”, in the context of synthesizing the provisions of the theory of transculturalism and “segmental assimilation”, which have not been previously applied to explain the problems of adaptation of for-eign cadets in Russian universities. The article presents a model of sociocultural adaptation of foreign cadets in the host space of a military university as a continuous interaction of different individuals, groups of ethnic and religious cultures, as well as Russian military and global cultures. The difference of the presented understand-ing is the belief in the mutual influence exerted on each other by the participants of the transcultural polylogue, which leads within the framework of a military university not to full assimilation, but to segmental fusion and mutual changes.