The battle of Okinawa

I read the corum about the battle of Okinawa. About 200,000 Americans and Japanese died during the battle of Okinawa. Durind World WarⅡ, when many Okinawans still spoke a different dialect, Japanese troops treated the Okinawans brutally. They used them as shields against Americans. The Okinawans commited mass suicide. And many women became the sexual slavery. The fact is going to be ignored.According the corum, Ministry of Education is trying to whitewash the battle of Okinawa. What do you think is the reason for cutting facts of the battle of Okinawa?