The article examines the main geopolitical aspects of the reunification of the Crimea with Russia from the point of view of the policies of the Russian Federation and Western countries in the Black Sea region and specifically in the field of energy security and cooperation. Russia’s desire to consolidate its positions as an influential center of the emerging polycentric world requires it to build constructive and meaningful relations primarily with partner countries in the region of the Middle East, the Caspian-Black Sea region, and also in Asia within the BRICS taking into account the “Chinese factor” in the 21st century. The establishment of cooperation in the bipolar world is a prerequisite for preserving peace and prospects for the soci...