Why did the Americans get japan to open its borders?

* Increased trade with the West: The Chinese Opium Wars of the 1840s showed the Japanese the consequences of resisting Western demands for trade. In 1853, Commodore Matthew Perry of the United States Navy arrived in Japan with a fleet of ships and demanded that the Japanese open their ports to American trade.

* Technological advancements: The Japanese were impressed by the technological advancements of the West, particularly in the areas of military and naval power. They realized that they needed to modernize their own military if they wanted to avoid becoming a colony of a Western power.

* Political pressure: The Japanese government was also facing pressure from within to open the country to foreign trade and investment. A growing number of Japanese merchants and samurai were interested in doing business with the West.

In 1854, the Japanese government signed the Treaty of Kanagawa with the United States, which opened two Japanese ports to American trade and gave the United States extraterritorial rights in Japan. This was the beginning of the end of Japan's policy of isolation.