The article examines the factors that determine the importance of Ukraine as a country which inner development may strengthen and stabilize or weaken and destabilize the international security at a regional and global levels. The author analyzed Ukraine's national interests and geopolitical aspirations of its neighbors - Russia, NATO and the EU, their rivalry for influence over Ukraine.

Ukraine, international security, regional security, and regional instability, global instability, geopolitics, national interests, competition, the struggle for influence in Ukraine