Toward the end of World War II, the United States was able to launch massive attacks on mainland Japan after seizing Okinawa, dropping around 7,000 tons of bombs, a study of U.S. documents shows.
The findings are based on an analysis of more than 10,000 pages of declassified military documents conducted by Kanto Gakuin University professor Hirofumi Hayashi.
The analysis helps clarify the overall picture of how U.S. forces attacked the mainland from Okinawa, said Masahiko Yamabe, a researcher at the Center of the Tokyo Raids and War Damage, in Koto Ward.