Final answer:
The Iroquois Confederacy was significant during the Colonial period due to their political force, alliance with the British in the American Revolution, and eventual split over joining the revolution. The Confederacy united to maintain independence and protect lands. The Tuscarora joined for protection from neighboring tribes.
Step-by-step explanation:
The strength of the Iroquois Confederacy in North America during the Colonial period was significant for several reasons. Firstly, the Iroquois Confederacy was a major political force in the Northeast and had been for over a century. Secondly, their alliance with the British during the American Revolution gave the British a powerful native ally and helped them gain an advantage in the war. Lastly, the Iroquois Confederacy's split over joining the American Revolution ultimately tore them apart.
The Iroquois Confederacy united in the first place because it provided a way for the member tribes, including the Mohawk, Seneca, Onondaga, Oneida, Cayuga, and later the Tuscarora, to maintain their independence and protect their lands from rival tribes. It also allowed them to coordinate their efforts in trade, defense, and diplomacy.
The Tuscarora joined the Iroquois Confederacy in the early 18th century after facing increasing pressure and conflict from neighboring tribes. By joining the confederation, the Tuscarora gained protection and support from the other member tribes, which helped them repel attacks and defend their lands.
In the end, the Iroquois Confederacy was torn apart by the American Revolution. Some tribes, like the Mohawk, Cayuga, Seneca, and Onondaga, formed an alliance with the British, mainly due to the influence of Mohawk leader Joseph Brandt. On the other hand, the Oneida and Tuscarora allied with the Americans. This split created division and conflict within the Confederacy, undermining its unity and strength.