That October, Vladimir Lenin—communist revolutionary and advocate for class war and “dictatorship of the proletariat”—would overthrow Russia’s earlier democratic revolution that had toppled the powerful czar, all in the name of liberating humanity, but instead would set up the most repressive totalitarian regime in history, the Soviet Union.

In this incisive, fast-paced history, New York Times bestselling author Arthur Herman brilliantly reveals how Lenin and Wilson rewrote the rules of modern geopolitics. Prior to and through the end of World War I, countries marched into war only to advance or protect their national interests. After World War I, countries began going to war over ideas. Together Lenin and Wilson unleashed the disruptive ideologies that would sweep the world, from nationalism and globalism to Communism and terrorism, and that continue to shape our world today.