Most native tribes had allied with the French during the conflict, and they soon found themselves dissatisfied by British rule. In May 1763, just a few months after the formal conclusion of the Seven Years’ War, a pan-tribal confederacy led by Ottawa chief Pontiac rose up in rebellion. His warriors attacked a dozen British forts, capturing eight of them, and raided numerous frontier settlements. Hundreds died in the process. In response, the British handed out smallpox-infected blankets to Pontiac’s followers. Moreover, a gang of whites known as the Paxton Boys massacred 20 defenseless Native Americans who had nothing to do with the fighting.