Between 1917 and 1920--from the Bolshevik Revolution to the definitive statement of American opposition to Bolshevik Russia--Soviets and Americans searched for ways to effect meaningful interactions between their two nations in the absence of formal diplomatic relations. During these years, wide-ranging discussions occurred on a variety of serious issues, from military collaboration and economic relations to the comprehensive settlement of political and military disputes. At the same time, extensive debates took place in both countries about the nature of the relations between them. As...