Drawing on the work of dozens of scholars from Russia, Europe, Japan, and the United States, this encyclopedic volume provides a useful overview of the early years of the Soviet Union. Among the topics covered are the collapse of the moderate Kerensky government and the rise of Bolshevik power, the sweeping militarization of Soviet society (the Red Army had 4,400,000 regulars in 1920), and the contribution of members of the Russian intelligentsia to the apparatus of the Soviet state. Students of Soviet history will find this compendium, which weighs in at nearly 800 pages, to be a valuable resource.