The Tuscarora War was an anti colonial war fought by the Tuscarora against English settler encrouchment on their lands in the Carolinas. Additionally, the war was fought against the increased slave trade in the Carolinas which at the time was ethnically mostly Indigenous slaves not African slaves. It lasted for over three years and ended in Tuscarora defeat, which led to a great migration northward where many Tuscarora joined the Haudenosaunee confederacy as the sixth Nation. The Tuscarora at the time had at least four forts (Neoheroka, Torhunta, Innennits, and Catechna) which were of similar or better quality than the European forts at the time. Many other indigenous groups fought on the side of the settlers. Approximately 950 Tuscarora peoples were killed or captured and sold into slavery at the end of the war. The war also led to further conflict almost immediately with the Yamasee war breaking out in 1715, and led to major changes in the slave trade in the Carolinas. Some historians say that the other Native groups in the area learned from the war that the settlers were heavily invested in the slave trade of Native peoples and the war greatly reduced the number of Native peoples 'available' to settlers for the slave trade. This and other anti colonial reasons led to the Yamasee war in which many of the Indigenous groups who had fought with the settlers in the Tuscarora war turned against the colonists. The Tuscarora war also had the effect of changing many settler attitudes towards Native peoples from potential slaves to potential allies in conflicts.