Can someone please help me is it b​

Describe the relations between the united states and other countries under the articles of confederation. 3-4 sentences

Which areas where seperated by the iron curtain

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