Answer:
compact theory in the united states. regarding the constitution of united states, the compact theory holds that the country was formed through a compact agreed upon by all states, and that the federal government is thus a creation of the states
The best answer to the question that is being asked and being presented above would be a 'tourist'. A tourist is what we typical term for a non-citizen that is legally visiting the country. This tourist could have processed with a visa or without one, depending on the arrangements between countries.
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