Question

Why did the leaders of the Iroquois Confederacy refuse an alliance
with the British

Answer 1

They expected the French to win a war against the British

Step-by-step explanation:

Answer 2

The main reason why the leaders of the Iroquois Confederacy refused an alliance
with the British is because they greatly distrusted the British--mostly due to a recent history of the British and their subjects attempting to steal native land.