THE QUESTIONS AMERICA SHOULD ASK
Fifty years ago, during a three-day period in August 1945, the United States dropped two atomic bombs on Japan, killing more than 115,000 people and possibly as many as 250,000, and injuring at least another 100,000. In the aftermath of the war, the bombings raised both ethical and historical questions about why and how they were used. Would they have been used on Germany? Why were cities targeted so that so many civilians would be killed? Were there likely alternative ways to end the war speedily and avoid the Allies' scheduled November 1, 1945, invasion of Kyushu?
Such questions often fail to recognize that, before Hiroshima and Nagasaki, the use of the A-bomb did not raise profound moral issues for policymakers. The weapon was conceived in a race with Germany, and it undoubtedly would have been used against Germany had the bomb been ready much sooner. During the war, the target shifted to Japan. And during World War II's brutal course, civilians in cities had already become targets. The grim Axis bombing record is well known. Masses of noncombatants were also intentionally killed in the later stages of the American air war against Germany; that tactic was developed further in 1945 with the firebombing of Japanese cities. Such mass bombing constituted a transformation of morality, repudiating President Franklin D. Roosevelt's prewar pleas that the warring nations avoid bombing cities to spare civilian lives. Thus, by 1945, American leaders were not seeking to avoid the use of the A-bomb on Japan. But the evidence from current archival research shows that by pursuing alternative tactics instead, they probably could still have obviated the dreaded invasion and ended the war by November.
SHIFTING FROM GERMANY TO JAPAN
In 1941, urged by émigré and American scientists, President Roosevelt initiated the atomic bomb project -- soon code-named the Manhattan Project -- amid what was believed to be a desperate race with Hitler's Germany for the bomb. At the beginning, Roosevelt and his chief aides assumed that the A-bomb was a