Miller (history, Northwestern College) has written a valuable study of the YMCA's role in helping to keep Russian Orthodoxy alive and vital during the 20th century. Before WW I, the YMCA, the leading US Protestant movement that sought to teach the Christian faith through youth activities, cooperated with Orthodox clergy and believers to help Orthodoxy adjust to the modernizing winds pushing Russia toward industrialization and land reform. When the communists took power in 1917 and Russian believers fled to western Europe, it was the YMCA that provided financial support to maintain the Orthodox community and to build St. Sergius Theological Academy in Paris, which became the home for Orthodox intellectuals like Sergei Bulgakov, and St. Vladimir's Theological Seminary in New York. Throughout the decades of communist rule, the YMCA backed the isolated Russian Orthodox community and helped it to grow. Mining both Russian and YMCA archives, Miller shows the interdependence and cooperation between the two Christian communities and fittingly hails the YMCA's philanthropy and ecumenism in a time of need. Excellent index and bibliography. Summing Up: Highly recommended.