The quote "The United States in Congress assembled shall never engage in a war, not grant letters of marque or reprisal in a time of peace, nor enter into any treaties or alliances, unless nine states assent to the same" reflects the principle of federalism. The correct answer is A.
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There are 6 official languages in the UN
The people who signed the Declaration of Independence had signed the United states declaration of Independence in the year of 1776.
The Indian Appropiation Act contained several acts enacted by the US Congress between the late 19th century and the early 20th century.
One of the most outstanding acts was the Indian Appropriations Act from 1871. According to it, Indians would not be treated anymore as an "independent nation, tribe, or power". In turn, Indians would be considered as "wards" of the federal goverment. This provision considers Indians somehow like children, as if they needed a tutor.
From this moment onwards, the US goverment did not have to mantain endless negotiations to sign treaties with the different Indian tribes. Also treaties that had been signed before the Act were not enforceable anymore.
The act made much easier for the US government to exercise control over lands which were previously dominated by the Indians.