The calamity of World War I spawned dozens of liberation movements among ethnic and religious groups throughout the world. None was more successful in realizing the goal of self-determination than the Czechs and Slovaks. From its humble beginning the Czecho-Slovak liberation movement grew into an impressive struggle that was waged from the capitals of Western Europe to the frozen steppes of Siberia. Its ranks included exiled propagandists, war prisoners-turned-legionaries and conspirators inside Austria-Hungary. This book shows how these groups overcame their estrangements and coordinated their efforts to win independence for their homeland. It also examines the consequences of the Czecho-Slovaks' achievements, including their entanglement in the Russian Civil War and their impact on the postwar settlements that redrew the political boundaries of Central Europe.