Autarky

"Autarky is the term used to describe a country or economy that operates independently. Autarky, in its most basic sense, means “self-sufficient,” though it’s almost always used in correlation with a political or economic system, meaning that the entity – whatever it is – can operate and exist free of outside influence, support, or trade."

Source: https://corporatefinanceinstitute.com/resources/economics/autarky/