Trade disputes are often understood as conflicts between countries with competing national interests, but they are often the unexpected result of domestic political decisions to serve the interests of the rich at the expense of ordinary workers and retirees. Klein and Pettis trace the origins of the current trade wars to decisions made by politicians and business leaders in China, Europe, and the United States over the past thirty years. Across the world, the rich have prospered while workers can no longer afford to buy what they produce, have lost their jobs, or have been forced into further debt. Challenging mainstream thinking, the authors invite us to reflect on how the class wars of rising inequality threaten the global economy and international peace, and what we can do about it.