IV
With the start of his second week at Potsdam, Truman knew that decisions on the bomb could wait no longer.
At 10:00 Sunday morning, July 22, he attended Protestant services led by a chaplain from the 2nd Armored Division. Then later in the morning he went to a Catholic mass conducted by his old friend Father Curtis Tiernan, the chaplain of Battery D, who was serving as Chief of Army Chaplains in Europe and had been flown to Berlin at Truman’s request.
“I’m going to mass at 11:30 presided over by him,” Truman wrote to Bess at mid-morning. “I've already been to a Protestant service so I guess I should stand in good with the Almighty for the coming week—and my how I'll need it.”
Stimson had appeared at Number 2 Kaiserstrasse shortly after breakfast, with messages from Washington saying all was about ready for the “final operation” and that a decision on the target cities was needed. Stimson wanted Kyoto removed from the list, and having heard the reasons, Truman agreed. Kyoto would be spared. “Although it was a target of considerable military importance,” Stimson would write, “it had been the capital of Japan and was a shrine of Japanese art and culture….” First on the list of approved targets was Hiroshima, southern headquarters and depot for Japan’s homeland army.
Early on Monday, Stimson came again to Truman’s second-floor office. A warning message to Japan, an ultimatum, was nearly ready, the document to be known as the Potsdam Declaration. Stimson thought it unwise at this point to insist on unconditional surrender, a term the Japanese would take to mean they could not keep their Emperor. He urged a revision to read that the Allies would “prosecute the war against Japan until she ceases to resist.” But Byrnes had vehemently opposed any such change. Unconditional surrender was an objective too long established, too often proclaimed; it had been too great a rallying cry from the time of Pearl Harbor to abandon now, Byrnes insisted. Truman had reaffirmed it as policy in his first speech to Congress on April 16. It was what the Nazis had been made to accept, and its renunciation with the Japanese at this late date, after so much bloodshed, the acceptance of anything less with victory so near, would seem like appeasement. Politically it would be disastrous, Byrnes was also sure. To most Americans, Hirohito was the villainous symbol of Japan’s fanatical military clique. A Gallup Poll in June had shown that a mere fraction of Americans, only 7 percent, thought he should be retained after the war, even as a puppet, while a full third of the people thought he should be executed as a war criminal. Like others who had been advising Truman, Byrnes considered any negotiations with Japan over terms a waste of time and felt that if Hirohito were to remain in place, then the war had been pointless. Though Truman listened carefully, Stimson failed to convince him otherwise.
Tuesday, July 24, was almost certainly the fateful day.
At 9:20 A.M. Stimson again climbed the stairs to Truman’s office, where he found the President seated behind the heavy carved desk, “alone with his work.” Stimson had brought another message:
Washington, July 23, 1945
Top Secret
Operational Priority
War 36792 Secretary of War Eyes Only top secret from Harrison.
Operation may be possible any time from August 1 depending on state of preparation of patient and condition of atmosphere. From point of view of patient only, some chance August 1 to 3, good chance August 4 to 5 and barring unexpected relapse almost certain before August 10.
Truman “said that was just what he wanted,” Stimson wrote in his diary, “that he was highly delighted….”
Later, Truman wrote of a consensus at Potsdam, among Byrnes, Stimson, Leahy, Marshall, and General Arnold, that the bomb should be used. He recalled that Marshall again stressed the number of lives that would be saved. “I asked General Marshall what it would cost in lives to land on the Tokyo plain and other places in Japan. It was his opinion that such an invasion would cost at a minimum a quarter of a million American casualties….” He himself reached his own conclusion only “after long and careful thought,” he wrote, adding, “I did not like the weapon.”
Very possibly there was no one, clearcut moment when he made up his mind, or announced that he had. Most likely, he never seriously considered not using the bomb. Indeed, to have said no at this point and called everything off would have been so drastic a break with the whole history of the project, not to say the terrific momentum of events that summer, as to have been almost inconceivable.
Some critics and historians in years to come would argue that Japan was already finished by this time, just as Eisenhower had said and as several intelligence reports indicated. Japan’s defeat, however, was not the issue. It was Japan’s surrender that was so desperately wanted, since every day Japan did not surrender meant the killing continued. In theory, Japan had been defeated well before Truman became President. (Studies by the Japanese themselves had determined a year and a half before, by January 1944, that Japan had lost the war.) Yet in the three months since Truman took office, American battle casualties in the Pacific were nearly half the total from three years of war in the Pacific. The nearer victory came, the heavier the price in blood. And whatever the projected toll in American lives in an invasion, it was too high if it could be avoided.
“We had only too abundant evidence in those days that surrender was excluded from the Japanese ethos,” remembered a captain in Military Intelligence, Charlton Ogburn, Jr. “Thousands of our Marines and soldiers had died rooting Japanese from their foxholes and bunkers when they were perfectly aware that their situation was hopeless.” During the whole war, not a single Japanese unit had surrendered.
While intelligence reports indicated that Japan was beaten, they also forecast that the Japanese would hold out for months longer, meanwhile issuing intermittent peace feelers, both to bring the war to what they would regard as an acceptable conclusion, and “to weaken the determination of the United States to fight to the bitter end….”
The basic policy of the present [Japanese] government [said a combined Intelligence Committee report of July 8, 1945] is to fight as long and as desperately as possible in the hope of avoiding complete defeat and of acquiring a better bargaining position in a negotiated peace. Japanese leaders are now playing for time in the hope that Allied war weariness, Allied disunity, or some “miracle” will present an opportunity to arrange a compromise peace.
Nor, it must be stressed, was there ever anything hypothetical about preparations for the invasion—on both sides—a point sometimes overlooked in later years.
Truman had earlier authorized the Chiefs of Staff to move more than 1 million troops for a final attack on Japan. Thirty divisions were on the way to the Pacific from the European theater, from one end of the world to the other, something never done before. Supplies in tremendous quantity were piling up on Saipan. Japan had some 2.5 million regular troops on the home islands, but every male between the ages of fifteen and sixty, every female from seventeen to forty-five, was being conscripted and armed with everything from ancient brass cannon to bamboo spears, taught to strap explosives to their bodies and throw themselves under advancing tanks. One woman would remember being given a carpenter’s awl and instructed that killing just one American would do. “You must aim at the abdomen,” she was told. “Understand? The abdomen.” The general in charge of defense plans told other senior officers, “By pouring 20 divisions into the battle within two weeks of the enemy’s landing, we will annihilate him entirely and insure a Japanese victory.” Thousands of planes were ready to serve as kamikazes.
To no one with the American and Allied forces in the Pacific did it look as though the Japanese were about to quit. On July 15, The New York Times reported that twenty-five war-front correspondents from the United States and Australia had compared notes and their guess was the war would not end for nearly a year, not until June 1946. At the Pentagon, a long-remembered poster in the halls showed the face of a combat-hardened infantryman looking with grim determination at a map of the Japanese home islands
, while across the top in bold letters was slashed the single word “Next!” There was no talk at the Pentagon of an early end to the war. The great concern was the likelihood of huge Japanese forces in China and Southeast Asia fighting on even if the government in Tokyo were to give up.
Truman foresaw unprecedented carnage in any attempted invasion. “It occurred to me,” he would remark a few months later, “that a quarter of a million of the flower of our young manhood were worth a couple of Japanese cities, and I still think they were and are.” But whether 250,000 or 20,000 casualties would result was not the issue at the moment, not if the shock effect of a single devastating blow, or two, could stop the war—and particularly when devastating blows, in the form of B-29 raids, had become the standard, almost daily routine.
“Today’s prime fact is war,” Henry Stimson had said at the start of one Interim Committee meeting. The Japanese were the despised enemy, perpetrators of the treacherous attack on Pearl Harbor (and then in the midst of peace talks), perpetrators of the bombing of Manila and the Bataan death march. They were the murderers of American prisoners of war, the fanatics who ordered the seemingly insane kamikaze attacks. The details of the Bataan death march had become known only in February and enraged the country. Other atrocities included the Palawan Massacre, during which Japanese soldiers on the Philippine island of Palawan lured 140 American prisoners of war into air-raid trenches, then doused them with gasoline and burned them alive. A few days after the German surrender in May, the papers had carried a photograph of a blindfolded prisoner of war, an American flyer down on his knees, his hands tied behind his back, about to be beheaded by a Japanese officer swinging a sword.
At Potsdam, as Bohlen was to write, “the spirit of mercy was not throbbing in the breast of any Allied official,” either for the Germans or the Japanese.
And how could a President, or the others charged with responsibility for the decision, answer to the American people if when the war was over, after the bloodbath of an invasion of Japan, it became known that a weapon sufficient to end the war had been available by midsummer and was not used?
Had the bomb been ready in March and deployed by Roosevelt, had it shocked Japan into surrender then, it would have already saved nearly fifty thousand American lives lost in the Pacific in the time since, not to say a vastly larger number of Japanese lives.
Nor had anyone ever doubted that Roosevelt would use it. “At no time, from 1941 to 1945, did I ever hear it suggested by the President, or by any other responsible member of the government, that atomic energy should not be used in the war,” wrote Stimson. “All of us of course understood the terrible responsibility involved…President Roosevelt particularly spoke to me many times of his own awareness of the catastrophic potentialities of our work. But we were at war….”
Leahy later said, “I know FDR would have used it in a minute to prove that he hadn’t wasted two billion dollars.”
“I’ll Say that We’ll end the war a year sooner now,” Truman had told Bess in a letter the week before, speaking of Stalin’s agreement to come in against Japan, “and think of the kids who won’t be killed! That’s the important thing.” To him it was always the important thing. An invasion of Japan would be work for ground troops, dirty, God-awful business for infantry and artillery, as he knew from experience. For unlike Roosevelt or Woodrow Wilson, or any Commander in Chief since the advent of modern war, Truman had been in combat with ground troops. At the Argonne, seeing a German battery pull into position on the left flank, beyond his assigned sector, he had ordered his battery to open fire, because his action would save lives, even though he could face a court-martial. “It is just the same as artillery on our side,” he would say later of the bomb, which would strike many people as appallingly insensitive and simplistic, but he was speaking from the experience of war.
Once, when presiding judge of. Jackson County, he had, by his own private confession, allowed a crooked contractor to steal $10,000 in order to forestall the stealing of ten times the amount. He had permitted evil in order to prevent a larger evil and saw no other choice. Had he done right, had he done wrong, he had asked, writing alone late at night in the Pickwick Hotel. “You judge it, I can’t.”
Conceivably, as many would later argue, the Japanese might have surrendered before November and the scheduled invasion. Conceivably, they could have been strangled by naval blockade, forced to surrender by continued fire bombing, with its dreadful toll, as some strategists were saying at the time. Possibly the single sticking point was, after all, the Allied demand for unconditional surrender. But no one close to Truman was telling him not to use the new weapon. General Marshall fully expected the Japanese to fight on even if the bomb were dropped and proved as effective as the scientists predicted. Marshall saw the bomb more as a way to make the invasion less costly. That it might make the invasion unnecessary was too much to expect. “We knew the Japanese were determined and fanatical…and we would have to exterminate them man by man,” he would later tell David Lilienthal. “So we thought the bomb would be a wonderful weapon as a protection and preparation for landings.” Marshall had been so appalled by American casualties at Iwo Jima that he had favored using poison gas at Okinawa.
A petition drawn up by Leo Szilard, urging on grounds of morality that Japan be warned in advance, had been signed by seventy scientists but was not delivered to Washington until after Truman had left for Potsdam. Truman never saw it. But neither did he see the counter opinions voiced by those scientists urging that the bomb be used, and on grounds of morality. “Are not the men of the fighting forces…who are risking their lives for the nation, entitled to the weapons which have been designed,” said one petition. “In short, are we to go on shedding American blood when we have available means to a steady victory? No! If we can save even a handful of American lives, then let us use this weapon—now!”
It is hard to imagine anything more conclusive than the devastation of all the eastern coastal cities of Japan by fire bombs [wrote another scientist]; a more fiendish hell than the inferno of blazing Tokyo is beyond the pale of conception. Then why do we attempt to draw the line of morality here, when it is a question of degree, not a question of kind?
In a poll of 150 scientists at the Metallurgical Laboratory at Chicago, 87 percent voted for military use of the weapon, if other means failed to bring surrender. Arthur Compton was asked for his opinion:
What a question to answer [he later wrote]! Having been in the very midst of these discussions, it seemed to me that a firm negative stand on my part might still prevent an atomic attack on Japan. Thoughts of my pacifist Mennonite ancestors flashed through my mind. I knew all too well the destruction and human agony the bombs would cause. I knew the danger they held in the hands of some future tyrant. These facts I had been living with for four years. But I wanted the war to end. I wanted life to become normal again…. I hoped that by use of the bombs many fine young men I knew might be released at once from the demands of war and thus be given a chance to live and not to die.
Churchill was to write of the decision that was no decision, and in retrospect this seems to have been the case. “The historic fact remains, and must be judged in the after-time,” Churchill wrote, “that the decision whether or not to use the atomic bomb to compel the surrender of Japan was never an issue. There was unanimous, automatic, unquestioned agreement around our table; nor did I ever hear the slightest suggestion that we should do otherwise.”
“Truman made no decision because there was no decision to be made,” recalled George Elsey, remembering the atmosphere of the moment. “He could no more have stopped it than a train moving down a track…. It’s all well and good to come along later and say the bomb was a horrible thing. The whole goddamn war was a horrible thing.”
For his part, Truman stated later:
The final decision of where and when to use the atomic bomb was up to me. Let there be no mistake about it. I regarded the bomb as a military weapon and never had any doubt th
at it should be used. The top military advisers to the President recommended its use, and when I talked to Churchill he unhesitatingly told me that he favored the use of the atomic bomb if it might aid to end the war.
Though nothing was recorded on paper, the critical moment appears to have occurred at Number 2 Kaiserstrasse later in the morning of Tuesday, July 24, when, at 11:30, the combined American and British Chiefs of Staff convened with Truman and Churchill in the dining room. This was the one time when Truman, Churchill, and their military advisers were all around a table, in Churchill’s phrase. From this point it was settled: barring some unforeseen development, the bomb would be used within a few weeks. Truman later told Arthur Compton that the day of the decision was the same day he informed Stalin, and that occurred late the afternoon of the 24th.
It happened at the end of a particularly contentious session at the Cecilienhof Palace. The meeting was just breaking up when Truman rose from his chair and alone walked slowly around the table to where Stalin stood with his interpreter.
“I casually mentioned to Stalin that we had a new weapon of unusual destructive force,” Truman remembered. “All he said was that he was glad to hear it and hoped we would make ‘good use of it against the Japanese.’ ”
Truman did not specify what kind of weapon it was—he did not use the words “atomic bomb”—or say anything about sharing scientific secrets. Stalin seemed neither surprised nor the least curious. He did not ask the nature of the weapon, or how it was made, or why he hadn’t been told before this. He did not suggest that Soviet scientists be informed or permitted to examine it. He did not, in fact, appear at all interested.
To Bohlen, who was watching closely from across the room, Stalin’s response seemed so altogether offhand that Bohlen wondered whether the President had made himself clear. “If he had had the slightest idea of the revolution in world affairs which was in progress his reactions would have been obvious,” wrote Churchill, who had kept his eye on Stalin’s face. Byrnes, too, was certain Stalin had “not grasped the importance of the discovery,” and would soon be asking for more details. But this Stalin never did. He never mentioned the subject again for the remainder of the conference.
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