Perhaps you are thinking of World War II. In early December 1941, the Japanese (who had allied themselves with Germany and Italy) attacked a US naval base called Pearl Harbor in Hawaii. Up to that point, the US was neutral and had not entered the war, but when the Japanese attacked Pearl Harbor, that persuaded the president and congress that there had to be a strong response, and the US entered World War II.
The US has never annexed Japan.
No, currently the US and Japan are allies.
Yes, you can travel to Japan from the US.
the US is different from Japan because in the US we speak mostly English and in Japan they speak Japanese.
US - Washington D.C. Japan - Tokyo
the us bomed japan
No, in WW2 Japan was an enemy of the US.
There are currently about 48,000 US troops in Japan
more imports to US from Japan because US dosent make alot of the goods Japan has
Yes, US citizens can travel to Japan.
the US is most responsible for the quick rebuilding of Japan Japan and the US were very close in the cold war and still are
Japan