The development of international relations necessitates a new interpretation of certain categories and concepts in international law. However, despite such changes, the fundamental goal of the functioning of international law is to ensure peace on all continents and stable international cooperation. Even the most complex processes in interstate relations must be achieved through a settlement in accordance with the principles of international law, the violation of which by one of the states may cause the destabilization of international relations. Learning to turn to the mechanisms of settlement of interstate conflicts on the basis of the norms of international law is a guarantee of further development of our civilization, and any speculation by such norms can inevitably lead to degradation. One of the most important international issues for Ukraine today is the Russian-Ukrainian conflict in the East. Its multifaceted interpretation does not allow us to see the real picture of relations between Russia and Ukraine, and also hinders the resolution of this conflict. That is why the urgency of the topic of the scientific article is due to the need to study possible scenarios for resolving the Russian-Ukrainian conflict in accordance with international law.

Methodology: The research methodology is based on the results of scientific studies of national (Ukrainian) and European scientists on the issues of the Russian-Ukrainian conflict. The research methodology used includes: deductive method, historical method, descriptive method and method of comparative analysis. The method of deduction is used in the study of the problem from general to partial. The descriptive method was used to cover the historical excursion of the events that formed the basis of the Russian-Ukrainian conflict. The comparative method made it possible to compare phenomena and processes that arise during the implementation of international law and the descriptive method gave characteristics to these phenomena and processes. 

Results: In the article authors substantiate, that development and aggravation of the Russian-Ukrainian conflict consists of the following stages: the occupation of the premises of the Supreme Council and the Government of the Crimean Autonomic Republic by the Russian special forces; creation of «Donetsk People's Republic» and «Lugansk People's Republic»; invasion of the territory of Donetsk and Lugansk regions by regular units of the Armed Forces of Russia. 

According to the authors, the Organization for Security and Cooperation in Europe play a key role in resolving the conflict between Russia and Ukraine. It adopted a number of decisions that defined the foundations of cooperation between the OSCE and Ukraine in the field of state security and launched the activities of the Special Monitoring Mission on the territory of Ukraine, which is designed to promote dialogue between the two countries.

In our opinion, the solution of the Russian-Ukrainian conflict on the basis of international law is quite possible, but everything depends on the participants in this conflict. This is due to the fact that the reluctance of one of the parties to the conflict to resolve it in turn determines the low level of compliance with international law in this sphere.