The U.S sent in a form called of "Gun Boat Diplomacy". On 8
july 1853 Commodore Perry arrived for commercial
agreements.
U.S Promised to return
In March 1854 Tokugawa Shogunate agreed to Treaty of
Kanagawa which opened up two ports to U.S trade. Then the
U.S got the position most favoured of all the Nations.
In 1858 Japan's government decided to
sign the "Treaty of Amity" and
commerce with the U.S but the imperial
court opposed.
The imperial Court was dominated y
nationalist who wanted continuing
seclusion
Japan was pressured to sign similar
treaties with other Nations (Western
Nations)