In a study done by the Joint Chiefs of Staff in April 1945, the figures of 7. 45 casualties per 1,000 man-days and 1. 78 fatalities per 1,000 man-days were developed. This implied that the two planned campaigns to conquer Japan would cost 1. 6 million U. S. casualties, including 380,000 dead. On August 1, 1944, the Japanese War Ministry ordered the execution of all Allied war prisoners if an invasion of Japan happened. This means that over 100,000 allied soldiers that would have been executed. Some may argue that innocent Japanese civilians and military soldiers lost their lives to the bomb.
The Japanese were dangerous and were raised to fight, starting from a young age. An Air Force Association history of the 21st century says, "Millions of women, old men, and boys and girls had been trained to resist by such means as attacking with bamboo spears and strapping explosives to their bodies and throwing themselves under advancing tanks. " The AFA noted that, “The Japanese cabinet had approved a measure extending the draft to include men from ages fifteen to sixty and women from seventeen to forty-five. As a result of the increase in draft range, 28 million more people were drafted. The result of the atomic bombs was the unconditional surrender of Japan. If an invasion took place, the surrender may not have been unconditional. According to historian Richard B. Frank, “The intercepts of Japanese Imperial Army and Navy messages disclosed without exception that Japan's armed forces were determined to fight a final Armageddon battle in the homeland against an Allied invasion. The Japanese called this strategy Ketsu Go.
It was founded on the premise that American morale was brittle and could be shattered by heavy losses in the initial invasion. American politicians would then gladly negotiate an end to the war far more generous than unconditional surrender. ” The U. S. Department of Energy's history of the Manhattan Project agrees, saying that military leaders in Japan, “.... also hoped that if they could hold out until the ground invasion of Japan began, they would be able to inflict so many casualties on the Allies that Japan still might win some sort of negotiated settlement. The Japanese most likely would have been able to inflict enough casualties so that they would be able to negotiate. The Japanese followed the code of bushido, which is why the resistance is so strong in the Japanese military. According to one Air Force account, “The Japanese code of bushido—"the way of the warrior"—was deeply ingrained. The concept of Yamato-damashii equipped each soldier with a strict code: never be captured, never break down, and never surrender. Surrender was dishonorable. Each soldier was trained to fight to the death and was expected to die before suffering dishonor.
Defeated Japanese leaders preferred to take their own lives in the painful samurai ritual of seppuku. Warriors who surrendered were not deemed worthy of regard or respect. ” Operation Downfall would have taken more lives, compared to the atomic bombings. The atomic bomb quickly ended the war and was necessary. It eliminated the threat of the Japanese empire. It also eliminated many dangerous Japanese soldiers and civilians. President Truman made the right choice in authorizing the atomic bombings of Nagasaki and Hiroshima.