NAHA--Okinawa Prefecture will preserve the remains of the Imperial Japanese Army headquarters that served as a command post beneath Shuri-jo Castle here during the 1945 Battle of Okinawa.

In the meantime, Usuta’s 79-year-old father talked with a reporter from The Asahi Shimbun and explained that his son had been involved in the anti-nuclear movement until about 2012. He said his ...