Today Japan and UK have best of relations. Unlike mug headed individual like you, Japanese have moved on.
Enemy of Japan was USA also who bombed the crap out of Japan, and YET today USA JAPAN have solid defense and economic relationship. Do you know the amount of nuclear weapons that Japan allows USA to keep on it's soil ? Or you are again mud headed there too.
Live in PRESENT and not 300 years ago or get a Psychiatric counselling.