Answer: Different attitudes contributed to the division.
Step-by-step explanation:
A large Iroquois League was formed in what is now New York State. The Six Nations of Iroquois speakers formed a league to contribute to peace and good relations. During the American Revolution, the league could not contribute to peace, and due to the division of members into the league, ie, those who supported Great Britain and those who supported the United States, there was a split. The American Revolution was the reason for the overthrow of that organization of Indian tribes.