Sakoku: Sakoku was the term used to describe Japan's policy of complete national isolation during the Edo period (1603-1868). It involved severe restrictions on foreign trade and travel in order to protect Japanese culture and society.
Closed-door policy: A closed-door policy refers to a nation's decision to shut itself off from the rest of the world by implementing strict limitations on foreign interactions such as trade or immigration.
Non-interventionism: Non-interventionism is an approach where a country avoids interfering in the affairs of other nations, focusing instead on internal development and minimizing involvement in global conflicts.