Actually, the civil war make their relationship became much worse.
Because of the civil war, the ally has to lose a lot of resources for war supplies and equipment. This led to a situation where the allies no longer able to pay the treaties that they promisd to pay to the Sioux, which eventually ended up in conflict between the two group.
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Canada has a vast geography that occupies much of the continent of North America, sharing land borders with the contiguous United States to the south and the U.S. state of Alaska to the northwest. Canada stretches from the Atlantic Ocean in the east to the Pacific Ocean in the west; to the north lies the Arctic Ocean.
In constitutional law, a method for determining the constitutionality of a statute that restricts the practice of a fundamental right or distinguishes between people due to a suspect classification. In order for the statute to be valid, there must be a compelling governmental interest that can be furthered only by the law in question.