A movement of enslaved West Africans in Jamaica organized to throw off the yoke of slavery by violence. Their uprising, which became known as Tacky’s Revolt, featured a style of fighting increasingly familiar today: scattered militias opposing great powers, with fighters hard to distinguish from noncombatants. Even after it was put down, the insurgency rumbled throughout the British Empire at a time when slavery seemed the dependable bedrock of its dominion. That certitude would never be the same, nor would the views of black lives, which came to inspire both more fear and more sympathy than before. Tracing the roots, routes, and reverberations of this event, Tacky’s Revolt expands our understanding of the relationship between European, African, and American history as it speaks to our understanding of wars of terror today.