Exactly, Japan put it's troops on high alert to defend against North Korea because both countries consider that regime a threat. Japan fears in some way they will get involved. There is a chance North Korea would fire missiles at Japan or get into a confrontation at sea. I never said Japan would have to land troops on the penensila to fight the war.The Japanese have their troops on high alert, but it's to defend Japan, not to launch an offensive measure to protect SoKo. I doubt that SoKo would allow Japanese troops to be landed on Korean soil. Diplomatically speaking, that could be the worst thing. It may cause an alliance between the North and the South, against Japan. Can you say, "jumping out of the frying pan into the fire"?
For the sake of getting back on topic let's just say Japan has no involvement what so ever in the war. South Korea is still stronger then North Korea. Can we at least agree on that or continue wasting time arguing about Japan?