Connection between Hitler/Nazism and Asian countries?

I've went through failblog.org and googled up some pics and it seemed to me that in the Far east (Mostly Japan or South Korean) there are costumes consisting of red band with a swakista (spelling?) on the arm and a fake hitler moustache and a nazi costume. There are even bars or dance clubs called Hitler with swakistas all over it. Why is this? Is this the Japanese or Korean's way of making fun of westerners? I know that the holocaust isn't very well researched upon in the far East because it's culture is very different and it's not ociated with Western values and views. I can picture a Westerner visiting in Japan or Korea and feel offended when they see those kind of things, but it looks like it doesn't bother the Asians that much? Anybody else have any guess or answers to this?