Isolationism is a foreign policy which combines a non-interventionist military policy and a political policy of economic nationalism (protectionism). In other words, it asserts both of the following:
Non-interventionism United States non-interventionism Sakoku Protectionism Non-intervention José Gaspar Rodríguez de Francia Economic nationalism Navigation Acts Hongwu Emperor Corn Laws Wokou Robert Muldoon Imperium Monroe Doctrine Self-defense Anglo-Irish Treaty Foreign policy Dictator China New Zealand Labour Party Tokugawa shogunate Free trade Irish Free State Free market Ming Dynasty Libertarianism Qing Dynasty United Kingdom of Great Britain and Ireland Republic of Ireland Korea Ryukyu Islands Netherlands World War II Japan