Why did Tecumseh think ws necessary to unite native Americans in a fight against the US?

Tecumseh believed it was necessary to unite Native Americans in a fight against the U.S. to resist the encroachment of settlers on their lands and to preserve their cultures and ways of life. He recognized that individual tribes were often too weak to stand against the growing power of the United States. By forming a confederation, he aimed to create a stronger collective resistance and assert their rights and sovereignty. Tecumseh's vision was rooted in the idea that unity among tribes would enhance their chances of survival and success in a rapidly changing world.