Loyalty to one’s country or to people with a common language, religion, and history is known as
militarism.
nationalism.
mobilization.
conscription.

I believe the answer is: nationalism

The concept of nationalism promote the love of one own's country, and put the the things that benefited our own country first before we pay attention to the benefit of other country. This often used as a political ideology by parties in order to obtain support from the voters during the election.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.