I've been to Okinawa twice, and it's such a beautiful place, but with a horrendous history (a quarter of the population was killed in WW2) and a difficult present (the ongoing US army presence, and the Japanese government continually overruling Okinawa's wishes).
BTW, if you're interested in Okinawa, I highly recommend reading Elizabeth Miki Brina's "Speak, Okinawa".
Okinawa was the bloodiest battle of the Pacific war. 80 years on, are the dead being betrayed?
https://www.theguardian.com/world/ng-interactive/2025/jun/10/okinawa-was-the-bloodiest-battle-of-the-pacific-war-80-years-on-are-the-dead-being-betrayed