Why did the leaders of the Iroquois confederacy refuse an alliance with the British?

The leaders of the Iroquois Confederacy refused an alliance with the British during the French and Indian War primarily because they sought to maintain their autonomy and avoid being drawn into European conflicts. They were wary of British intentions and feared that aligning with them would undermine their power and land rights. Additionally, the Iroquois had established trading relationships with the French, which they were reluctant to jeopardize by siding with the British. The desire to protect their territory and sovereignty ultimately guided their decision.