Although we often hear arguments about textbooks, it is not true that the word "aggression" has been deleted from Japanese textbooks. In fact, the Japanese Teachers' Association is quite left-leaning, and one person even complained about trying to modify the word "aggression". But a Japanese friend of mine once told me that when her school teaches the history of World War II, it tends to think that Japan and the countries opposite Japan are both responsible. It is generally believed that war is bad and will make everyone suffer, so all parties involved are at fault. That is to say, although the Japanese admitted committing those atrocities, they also lost many civilians and soldiers in the struggle between China and the US military. Students can really learn things like "Japan invaded Asia" and "War was a mistake", but they can't seem to distinguish between casualties as aggressors and sacrifices made to defend the country.
As for the Pacific War, the teaching focus is on the two atomic bombs that decide the war. Japan's pacifism today is basically because of those two atomic bombs. What pacifists hope is mainly not to let that happen again, but this is not a reflection on japanese war crimes. There is a famous Peace Park in Hiroshima, but nowhere in Japan can really reflect how much damage Japan has brought to other countries (on the contrary, there are many concentration camp sites in Germany and so on). ).
Generally speaking, Japan's education in World War II has both "we lost" and "a dark period in history", but it is not so much how they invaded other countries as their own negative influence. The purpose of this kind of history education is to educate people that "war is a mistake that should not be made again", but it cannot cultivate people's strong sense of responsibility for what they have done. This is why Japan always conflicts with East Asian countries because of historical cognition, while Germany is recognized by Europe.