what was one of the most important policies of Japan under the Tokugawa shogunate as it relates to outsiders? make the answer short

Answer 1

One of the most important policies of Japan under the Tokugawa shogunate regarding outsiders was the policy of sakoku, or "closed country." Enforced from the 1630s, sakoku severely restricted foreign trade and prohibited most foreign contact, allowing only limited interaction with the Dutch and Chinese in designated ports. This isolationist policy aimed to maintain social order and prevent foreign influence, particularly from Christianity.