[quote=AegonVI]
Maybe in a few years. Japan is a threat to American peace. Isn't it?
[/quote]

Not at this point in time. There is some minor friction, but it's nothing like military action of the sort. 

[url=http://en.wikipedia.org/wiki/Japan%E2%80%93United_States_relations#From_1865_to_1914]Japan-US Relations[/url]