What are the 2 main reasons japan tried to isolate themsleves?

Tokugawa Shogunate imposed a policy of national seclusion, known as Sakoku (lit. 'closed country') from 1635 to 1853, aiming to control foreign influence and preserve the nation's stability and culture. This isolationist policy was intended to prevent the spread of Christianity and Western ideas, which were seen as a threat to traditional Japanese values and customs.

2. Strategic move to strengthen Japan's internal stability and security

The Shogunate wanted to limit external influences and maintain control over trade and economic activities. By reducing contact with foreign powers, the Tokugawa government aimed to minimize the potential for internal conflicts of external interventions that could destabilize their rule.