Let cut the crap and be honest with yourself, here, alright my American friend? You are a violent, aggressive, and warmonger country. In history, you are easily the most aggressive of all-time, just based by evidence of your short existence. This is a fact, so accept it.
As far as WW2, you enter for your own good. You didn't enter to save us for jack shit. We were fighting the Japanese for yearssss and no sign of us being defeat. That's like asking if the Nazi can defeat the British. You have to remember that we fought the Japanese while we were in a civil war and basically got nothing. We are too big for Japan and I believe our Soviet Union friend would have defeat Japan after they finished up the Nazi.