A book by the famous Russian historian Efim Iosifovich Pivovar, corresponding member of the Russian Academy of Sciences, president of the Russian State Humanitarian University (RGGU), head of the department of history of near abroad countries of the Faculty of History of Moscow State University. M.V. Lomonosov is an attempt at a comprehensive analysis of the integration processes of the 21st century in the space of Greater Eurasia. Based on a wide range of sources and scientific literature, the main integration institutions are considered: CIS, CSTO, EurAsEC, EAEU, Union State of Russia and Belarus, Caspian Five, SCO; the most important areas of economic, social, humanitarian and military-political interaction and cooperation of the states of the Greater Eurasia region are characterized, achievements, as well as contradictions and difficulties on the path of progressive integration activities are considered. The publishing layout is saved in a4.pdf format.