Generally, a superpower
imperialism
Imperialism
People of one nation who are citizens of another nation are called aliens.
I believe the money called to pay to the conquering nation is called a tribute.
I believe the money called to pay to the conquering nation is called a tribute.
Colonization
Lands that are controlled by another nation are called territories.
a
After fighting the most powerful nation on earth for over a decade, the NVA was by far the most hardened Army in SE Asia.
"Super" is the root word, and the prefix that could be added to form a word meaning a very powerful nation is "hyper," resulting in the term "hypersuper."
I think its called a colony
Try "mandate". It could also be a colony, or it could be a protectorate, or could be simply an invaded country depending on the context.