1, the question of faith. The war of that year was a top-down jihad advertised by the government. In the eyes of all Japanese, this is the decision of the emperor, the only way to change their living conditions, and it is sacred and inviolable. This is also the reason why they will offer the funeral of soldiers killed in World War II to the Yasukuni Shrine later. Admit this, and the position of the government will plummet.
2. The history of aggression itself is unacceptable. As far as national feelings are concerned, no country is willing to admit that it has invaded others.
The above two points have been said and explained, so let's talk about something else.
China people gave him an excuse to deny it. First of all, Okamura Ningji was protected by the national government and was not tried; Secondly, China did not demand war compensation, which gave the Japanese an excuse to deny aggression.
Americans and mud secretly support Japan. In the Tokyo trial, most Class-A war criminals were officers of the Pacific War, while officers of the China War Zone were given a lighter trial. In order to restrain the development of China and ensure the interests of the United States, Americans have been so muddled many times.
Japan's right-wing forces have always existed, but they have revived in recent years.
6. Textbook problem. It's not that we don't recognize the history of war, but that we don't recognize the history of cruel slaughter in war. In our view, this is aggression. To the Japanese, this is helping us. Most Japanese don't know what happened on the battlefield in China. This is particularly important. At the time of the Diaoyu Islands dispute, I saw a Japanese netizen posting a historical material defending the Nanjing Massacre during World War II on Yahoo official website. This is a comparison of numbers. It is said that when the Japanese army entered Nanjing, the resident population was nearly one-third less than when the Japanese army retreated. In order to refute the Nanjing Massacre, I said that the death of 300,000 people in Nanjing was a scam. What no man's land, mass graves, the Japanese may not even have heard of it.
7. Japanese folks have complete and true historical materials of aggression against China, and there are also some memoirs of veterans. It was available in Japanese bookstores in earlier years, but now it is not available. The Japanese government won't let it out, and no one can do anything about it.
8. Japanese teenagers don't understand modern history. Textbooks have been changed again and again, and even the modern history like World War II has disappeared, let alone the history of aggression against China. Now you ask a middle school student on the road when the Sino-Japanese War of 1894-1895 happened. Maybe half of them will say the Sino-Japanese War of 1894-1895, and the other half will tell you that he doesn't know. In order to prevent him from telling the Japanese government to tamper with history, he simply refused to include modern history in textbooks.
9. It is almost impossible for the Japanese to recognize the history of aggression now. At that time, he only admitted defeat, not aggression. That will leave more evidence than it is now! Now if the government admits the fact of aggression, it can't even think about what consequences it will face. If people's emotions can't be calmed down, how can it admit it? The only thing I can do is to cover up the facts and my true thoughts.
Actually, there are many reasons. Historical issues, left over to this day, are controversial. Now that the Internet is so developed, I believe that one day, all Japanese will understand the fact of aggression against China and must admit the history of aggression.