After WW2, Utilizing the great opportunity of defeating Japan, the US had manipulated to take control over Japan as if a colony of the US in a brand new way.
Though Japan now is rich, Japan is in fact belonged to US. It is a new kind of colony. Japan had lost her basic right of an independent land, that is the right to decide her nation'd destiny. Japan will always be as slaves if their people don't stand up for freedom of their own country.
To eliminate the US as an interference from Japan's quest for territory.
Cuba
1846
If it was US TERRITORY; yes. US Military Bases and US Warships are US Territory.
British territory
April 17,1900 the American Samoa became a territory.
One important thing people born in the US territories become is a US citizen.
Puerto Rico
Guam is a U.S. Territory is southeast asia. It is east of Japan.
it bacame a us territory in 1977
Puerto Rico is the territory and protectorate you seek.
A territory becomes a U.S. state when it reached a total population of 60,000 people.