The theoretical and methodological analysis of approaches to the definition of the concept and essence of federalism is carried out. The content and the system of principles of federalism with the help of modeling, typing, classification and legal and factual interpretation of theoretical and methodological approaches are examined.
Ethno-political separatist conflict is a feature of modern international relations and a potential threat to global security. The number of such conflicts is growing and the danger of their aggravation remains an urgent problem, thus, studing the possibilities of solving them is an important task. The concept of ethno-political separatist conflict integrates two terms of the Western science: “self-determination conflict” and “separatist conflict”.