Digital History 390Operations Iceberg and Downfall

President Truman’s Decision to use the Atomic Weapon“How formidable would

they be on their five home islands, joined by every member of the civilian population old enough to carry a hand grenade?”-William Manchester

Maps: Okinawa and Operation Iceberg, with Overlay

Assault Plans for Operation Downfall

Map of Hiroshima before and after

Chart 1

On average a US Division in WW2 was 15,000+ men

Chart 2

Sources

http://www.japanfocus.org/-Aniya-Masaaki/2629

http://www.ww2pacific.com/downfall.html

http://www.rerf.or.jp/index_e.html

The Ultimate Battle by Bill Sloan

http://www.ibiblio.org/hyperwar/AAF/USSBS/AtomicEffects/img/