The U.S.-Dakota War was one of the formative events in Minnesota history, and despite the passage of time, it still stirs up powerful emotions among descendants of the Dakota and white settlers who experienced this tragedy. Hundreds of people lost their lives in just over a month of fighting in 1862. By the time the year was over, thirty-eight Dakota men had been hanged in the largest mass execution in United States history. Not long afterwards, the United States abrogated its treaties with the Dakota, confiscated their reservations along the Minnesota River, and forced most of the Dakota to remove westward. While dozens of books and articles have been written about these events, scholars have largely ignored an important legal development ...