Taking this rule to guide us, it may be safely assumed that citizens of the United States who migrate to a Territory belonging to the people of the United States, cannot be ruled as mere colonists, dependent upon the will of the General Government, and to be governed by any laws it may think proper to impose. The principle upon which our Governments rest, and upon which alone they continue to exist, is the union of States, sovereign and independent within their own limits in their internal and domestic concerns, and bound together as one people by a General Government, possessing certain enumerated and restricted powers, delegated to it by the people of the several States, and exercising supreme authority within the scope of the powers granted to it, throughout the dominion of the United States. A power, therefore, in the General Government to obtain and hold colonies and dependent territories, over which they might legislate without restriction, would be inconsistent with its own existence in its present form. Whatever it acquires, it acquires for the benefit of the people of the several States who created it. It is their trustee acting for them, and charged with the duty of promoting the interests of the whole people of the Union in the exercise of the powers specifically granted. At the time when the Territory in question was obtained by cession from France, it contained no population fit to be associated together and admitted as a State; and it therefore was absolutely necessary to hold possession of it, as a Territory belonging to the United States, until it was settled and inhabited by a civilized community capable of self-government, and in a condition to be admitted on equal terms with the other States as a member of the Union. But, as we have before said, it was acquired by the General Government, as the representative and trustee of the people of the United States, and it must therefore be held in that character for their common and equal benefit; for it was the people of the several States, acting through their agent and representative, the Federal Government, who in fact acquired the Territory in question, and the Government holds it for their common use until it shall be associated with the other States as a member of the Union.