Japan was forced to submit after America dropped atomic bombs on the cities of Hiroshima and Nagasaki.
Japan
The United States declared war on Japan who was an ally to Hitler's Nazi party in Germany, because of the attack on Pearl Harbor.
Hopefully this will answer your question, but the attacks made by japan against the united states pretty much severed the Japanese citizens from moving.
The United States declared war against Japan on December 8, 1941, the day after Japan's attack on Pearl Harbor, Hawaii. Three days later, on December 11, 1941, Germany declared war against the United States.
Vietnam
The United States Used Nuclear Bombs Against Japan After The Pearl Harbor Bombing, And So The United States Dropped A Nuclear Bombs On Hiroshima. Japan Said That Didn't Matter, And The United States Dropped A Nuke On Nagasaki.
The United States declared war against Japan on December 8, 1941, the day after Japan's attack on Pearl Harbor, Hawaii. Three days later, on December 11, 1941, Germany declared war against the United States.
The United States and Japan.
The surrender of Japan to the US on the deck of the battleship Missouri.
Because the Emperor of Japan want to show Supermacy against the United States.
United States.
There was the Pacific Campaign against Japan, by the United States. Then there was the European Campaign against Hitler and his European ally by the United States, Soviet Russia, Great Britain and their allies.