If I remember correctly the quote from the fabulous series "Victory At Sea", one in seven naval casualties (US) in World War II were suffered in the battle for Okinawa. Ask the men who fought at Guadalcanal, Pelilu, Angaur, Iwo Jima, Okinawa, and a thousand other places in the Pacifac theater, whether they think that Hiroshima and Nagasaki were justifiable!!!!