Why did the tribes of the Iroquois work together?

The tribes of the Iroquois worked together primarily for mutual protection and to enhance their political and social stability. By forming the Iroquois Confederacy, also known as the Haudenosaunee, they established a framework for collective decision-making, which helped them address common challenges such as warfare, trade, and resource management. This alliance fostered a sense of unity and identity among the tribes, allowing them to present a stronger front against external threats and to collaborate more effectively in various aspects of life.