What is the purpose of the preamble?

How does an oligarchy conflict with democratic principles

How did europeans and the introduction of european goods and ideas change native life ?

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife