Japan's history tells us that it is easy to start a war, but it is difficult to stop the war. The war with China occurred in 1931 and by the Emperor’s Gyokuon-hoso radio broadcast announcing Japan’s surrender, it ended in 1945 --it is called 15 years' war. It goes without saying that Japan knows well about how difficult to end the war. Therefore,it would be Japan's duty to give some pieces of highly suggestive advice to the world simply because Japan went through unbearable sufferings caused by the war and put up with them for fifteen years.