In 1835, the states of Ohio and Michigan mobilized heavily armed militias, marched them to their shared border, and prepared to engage in a bloody civil war. The prize they were willing to kill for? A 468-square-mile strip of swampy land near the mouth of the Maumee River. This absurd standoff, born entirely from a terrible cartographical error, paralyzed the federal government and delayed Michigan's statehood. How did a simple mapping mistake nearly spark a war between neighbors? When the original borders of the Northwest Territory were drawn, surveyors relied on flawed maps that misplaced the southern tip of Lake Michigan. Decades later, as the region grew wealthy from canal trade, both Ohio and Michigan realized the economic power of the Toledo Strip. Tensions boiled over into arrests, nighttime raids, and a bizarre series of bloodless military posturing. This highly entertaining historical account dives into the muddy trenches of the Toledo War. It explores the stubborn political maneuvering of a young, hot-headed Michigan governor and the sheer exasperation of President Andrew Jackson, who was forced to intervene. Uncover the hilarious and almost-tragic story of how this border dispute was finally settled. Discover how Michigan lost the swamp but gained the entire Upper Peninsula in a trade that forever reshaped the map of America.