I believe it was the United States, using a method called "gunboat diplomacy".
In 1853, the U.S. government demanded that Japan (then a closed country) reopen trade with the West. In 1854, the U.S. government (through gunboat diplomacy) forced the Japanese government to sign a treaty, opening Japan up to trade with the U.S.
The United States. Commodore Matthew Perry, using military force, demanded the opening of Japanese ports in (...I believe it was) 1853.
The U.S. Commodore who forced Japan to open up to trade in 1853 was Matthew Perry. He led a naval expedition to Japan, arriving with a fleet of ships known as the "Black Ships." His mission was to negotiate a trade agreement, which ultimately resulted in the Treaty of Kanagawa in 1854, marking the end of Japan's isolationist policy. Perry's efforts significantly opened Japan to the Western world and initiated a new era in Japanese history.
Japan Matthew Perry Opened Trade With them is 1853.
united states
That Japan should open up the Country to Foreign Trade (At that time Japan was closed to outsiders, and Japanese were forbidden to travel overseas)
1853
Matthew Perry Opened Trade With them is 1853.
It meant more money for the U.S. to open trade lines with Japan.
oliver perry
1853
Japan was exposed to ideas that revolutionized its society