Why was a treaty between the native Americans and the US needed?

Treaty was needed to serve and satisfy a fundamental need of States to regulate by consent issues of common concern and thus to bring stability into their mutual relations between native Americans and US.

Explanation:

Treaties form the basis of most parts of modern international law. Like International environmental agreements are important because they enable countries to work together to deal with vital environmental issues which are trans boundary or global in nature for e.g. air pollution, climate change, protection of the ozone layer, and ocean pollution.

The federal government in many treaties agreed to guarantee education, health facilities, housing, and other services to native Americans. The United States also agreed to manage and protect inhabitant's resources, such as lands and timber.

- "the civil rights movements"

- "following the american civil war and abolition of slavery, the united states entered a period known as reconstruction, during which black americans continued to suffer from disenfranchisement, racial segregation, and economic oppression. beginning in the early 1950's, black americans launched a series of major campaigns of civil resistance, emphasizing the need for nonviolent protests and civil disobedience."

"such as the montgomery bus boycott of 1955-56, a campaign launched by rosa parks against the policy of racial segregation of the public transit system in alabama. “sit-ins” became popular across the american south, particularly in greensboro, north carolina, increase national sentiment."

- "the counterculture movement"

- "counterculture began to develop in the united states following the rise of conformity in american culture during the 1950s. by 1963, youth, particularly those of the white middle class, began rejecting the cultural standards and normality of their parents, opting for progressive attitudes instead. the movement gained momentum as the civil rights movement became increasingly successful and as the u.s. military intervention of vietnam began to take a negative turn."

"hippie counterculture moved further into popular culture following the summer of love in 1967 when thousands of people came together in the haight-ashbury neighborhood of san francisco. along with greenwich village in new york city, haight-ashbury became a hub for the counterculture movement."

there were abundant sources of fuel nearby