The Biggest Decision: Why We Had To Drop The Atomic Bomb


Some writers have argued that the cumulative effects of battlefield defeats, conventional bombing, and naval blockade already had defeated Japan. Even without extending assurances about the emperor, all the United States had to do was wait. The most frequently cited basis for this contention is the United States Strategic Bombing Survey , published in 1946, which stated that Japan would have surrendered by November 1 “even if the atomic bombs had not been dropped, even if Russia had not entered the war, and even if no invasion had been planned or contemplated.” Recent scholarship by the historian Robert P. Newman and others has demonstrated that the survey was “cooked” by those who prepared it to arrive at such a conclusion. No matter. This or any other document based on information available only after the war ended is irrelevant with regard to what Truman could have known at the time.

What often goes unremarked is that when the bombs were dropped, fighting was still going on in the Philippines, China, and elsewhere. Every day that the war continued thousands of prisoners of war had to live and die in abysmal conditions, and there were rumors that the Japanese intended to slaughter them if the homeland was invaded. Truman was Commander in Chief of the American armed forces, and he had a duty to the men under his command not shared by those sitting in moral judgment decades later. Available evidence points to the conclusion that he acted for the reason he said he did: to end a bloody war that would have become far bloodier had invasion proved necessary. One can only imagine what would have happened if tens of thousands of American boys had died or been wounded on Japanese soil and then it had become known that Truman had chosen not to use weapons that might have ended the war months sooner.

TOKYO, 1945