The surrender of Japan in August 1945 brought World War II to a close. On August 10, 1945, after the invasion of Manchuria by the Soviet Union and the atomic bombings of Hiroshima and Nagasaki, Japan's leaders at the Imperial conference (gozenkaigi) decided, in principle, to accept the uncompromising terms the Allies had set down for ending the war in the Potsdam Declaration. It was after several more days of behind-the-scenes negotiations and a failed coup attempt that Emperor Hirohito gave a radio address to the nation, the Imperial Rescript on Surrender, announcing the acceptance on August 15. In this address, the Emperor emphasized the role of the atomic bombings in his decision, saying, "The enemy now possesses a new and terrible weapon with the power to destroy many innocent lives and do incalculable damage". A separate rescript issued to Japan's armed forces on August 17, did not mention the atomic bombings but emphasized the Soviet invasion. On August 28, the occupation of Japan by Supreme Commander of the Allied Powers began. On September 2, the Japanese government signed the Japanese Instrument of Surrender, which officially ended World War II. Some isolated commands of Japan's far-flung forces refused to surrender for months and years after.
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By 1945, as a result of a very successful United States submarine campaign and the complementary naval mining in Operation Starvation, Japanese merchant shipping had been largely destroyed, Japan's navy was confined to port for lack of fuel, her air force was grounded (fuel was being saved to repel the expected invasion), and most supplies from the mainland had been cut off. Japan's war economy was in shambles, with production of fuel, steel, rubber and other vital supplies at only a fraction of their pre-war levels.[1]
Japan's leaders had always envisioned a negotiated settlement to the war. Their pre-war planning expected a rapid expansion, consolidation, eventual conflict with the United States and then a settlement in which they were able to retain at least some of the new territory they had conquered.[2]
Although Japan's leaders were in agreement that the war was going badly, they disagreed over the best means to negotiate an end to it. There were two camps: the so-called "peace" camp, which favored a diplomatic initiative to persuade Joseph Stalin, the leader of the Soviet Union, to mediate a settlement between the US, its allies and Japan; and the hard liners, who favored fighting one last "decisive" battle that would inflict so many casualties on the U.S. that they would be willing to offer more lenient terms.
Both approaches were based on Japan's experience in the Russo-Japanese War forty years earlier. That war consisted of a series of costly but largely indecisive battles, followed by the decisive naval engagement in the Tsushima Strait. The peace settlement that followed was mediated by President of the United States Theodore Roosevelt.
In July 1944, General Hideki Tojo was replaced as prime minister by General Kuniaki Koiso, who declared that the Philippines would be the site of the decisive battle.[3] Despite the defeats at Leyte Gulf and on Leyte, the Emperor continued to believe that General Tomoyuki Yamashita could defeat Allied General Douglas MacArthur's invasion of Luzon.
None of these hopes were borne out. After the defeats of the Marianas campaign at the Philippine Sea and Saipan, and faced with the prospect of an invasion of the Japanese Home Islands, the War Journal of the Imperial Headquarters concluded: "We can no longer direct the war with any hope of success. The only course left is for Japan's one hundred million people to sacrifice their lives by charging the enemy to make them lose the will to fight."[4]
By the end of 1944 and the beginning of 1945, the Japan campaign was underway as Allied forces closed in on the home islands. By the end of January 1945, some Japanese officials close to the Emperor were seeking surrender terms which would protect his position. These proposals, sent through both British and American channels were assembled by General Douglas MacArthur into a 40-page dossier and given to President Roosevelt on the 2nd of February, two days before the Yalta conference. The dossier was reportedly dismissed by Roosevelt out of hand - the proposals contained all had the condition that Emperor's position would be assured, albeit possibly as a puppet ruler. At this time, however, the allied policy was to accept only an unconditional offer of surrender, although the eventual August settlement did keep the position of emperor in place[5].
In February 1945, Prince Fumimaro Konoe gave to Emperor Hirohito a memorandum about his analysis of the situation and told him that if the war continued, the Imperial house might be in greater danger from an internal revolution than from defeat.[6] According to the diary of Grand Chamberlain Hisanori Fujita, the Emperor, looking for a tennōzan, replied that it was premature to seek peace, "unless we make one more military gain".[7]
In April 1945, Admiral Kantarō Suzuki was chosen to replace Koiso. The "Fundamental Policy" of Suzuki's government was to fight on and to choose "honorable death of the hundred million" over surrender. However, underlings in the government bureaucracy were pointing out the weakness of Japan's position, particularly the shortages of petroleum and food. Despite the Soviet Union's announcement that it would not renew its 1941–46 neutrality pact with Japan for another five years, Foreign Minister Shigenori Tōgō was authorized to approach the Soviet Union, seeking to maintain its neutrality, or more fantastically, to form an alliance.
On June 9, the Emperor's confidant, Marquis Kōichi Kido, wrote a "Draft Plan for Controlling the Crisis Situation", warning that by the end of the year, Japan's ability to wage modern war would be extinguished and the government would be unable to contain civil unrest.
Kido proposed that the Emperor himself take action, offering to end the war on "very generous terms". Kido proposed that Japan give up occupied European colonies, provided they were granted independence, and that the nation disarm and for a time be "content with minimum defense". With the Emperor's authorization, Kido approached several members of the Supreme Council, the "Big Six". Tōgō was very supportive. Suzuki and Admiral Mitsumasa Yonai, the Navy minister, were both cautiously supportive; both wondered what the other thought. General Korechika Anami, the Army minister, was ambivalent, insisting that diplomacy must wait until "after the United States has sustained heavy losses in [Ketsu-Go]".[9]
In June, the Emperor lost confidence in the chances of achieving a military victory. The battle of Okinawa was lost, and he learned of the weakness of the Japanese army in China, of the navy, and of the army defending the Home Islands.
On June 22, the Emperor summoned the Big Six to a meeting. Unusually, he spoke first. "I desire that concrete plans to end the war, unhampered by existing policy, be speedily studied and that efforts made to implement them."[11] It was agreed to solicit Soviet aid in ending the war. Other neutral nations, like Switzerland, Sweden, and the Vatican City were known to be willing to play a role in making peace, but they were so small they could not have done more than deliver the Allies' terms of surrender and Japan's acceptance or rejection. The Japanese hoped that the Soviet Union could be persuaded to act as an agent for Japan in negotiations with the Western Allies. There was no agreement on what peace terms Japan might accept, or when to approach the Allies. The leaders of the Army were confident of their ability to deal the Americans a crippling blow when they attempted to invade Kyūshū in late 1945.
On June 30, Tōgō told Naotake Satō, Japan's ambassador in Moscow, to try to establish "firm and lasting relations of friendship". Satō was to discuss the status of Manchuria and "any matter the Russians would like to bring up".[12] Satō finally met with Soviet Foreign Minister Vyacheslav Molotov on July 11 but without result. On July 12, Tōgō directed Satō to tell the Russians that,
The Emperor proposed sending Prince Konoe as a Special Envoy, though he would be unable to reach Moscow before the Potsdam Conference.
Satō advised Tōgō that in reality, "unconditional surrender or terms closely equivalent thereto" was all that Japan could expect. Moreover Tōgō's messages were not "clear about the views of the Government and the Military with regard to the termination of the war," questioning whether Tōgō's initiative was supported by the key elements of Japan's power structure.[14]
On July 17, Tōgō responded,
In reply, Satō clarifed,
On July 21, speaking in the name of the cabinet, Tōgō repeated,
Allied cryptographers had broken most of Japan's codes. As a result, messages between Tokyo and Japan's embassies were provided to Allied policy-makers nearly as quickly as to the intended recipients.
On July 26, the United States, Britain, and China released the Potsdam Declaration, announcing the terms for Japan's surrender, with the warning, "We will not deviate from them. There are no alternatives. We shall brook no delay."
But on the other hand,
The only mention of "unconditional surrender" came at the end:
Whether the Emperor was of one those who had "misled the people of Japan", or even a war criminal — or potentially part of a "peacefully inclined and responsible government" was left unstated.
On July 27, the Japanese government considered how to respond to the Declaration. The four military members of the Big Six wanted to reject it, but Tōgō persuaded the cabinet not to do so until he could get a reaction from the Soviets. In a telegram, Shunichi Kase, Japan's ambassador to Switzerland, observed that unconditional surrender applied only to the military and not to the government or the people, and he pleaded that it should be understood that the careful language of Potsdam appeared "to have occasioned a great deal of thought" on the part of the signatory governments — "they seem to have taken pains to save face for us on various points." The next day, Japanese newspapers reported that the Declaration, the text of which had been broadcast and dropped on leaflets into Japan, had been rejected. In an attempt to manage public perception, Prime Minister Suzuki met with the press, and stated,
The meaning of the word mokusatsu, literally "kill with silence", is not precise; it can range from 'ignore' to 'treat with contempt' — which actually described fairly accurately the range of effective reactions within the government. However, Suzuki's statement, particularly its final sentence, leaves little room for misinterpretation and was taken as a rejection by the press, both in Japan and abroad, and no further statement was made in public or through diplomatic channels to alter this understanding.
On July 30, Ambassador Satō wrote that Stalin was probably talking to the Western Allies about his dealings with Japan.
On August 2, Tōgō wrote to Satō,
On the morning of August 6, confused reports reached Tokyo that the city of Hiroshima in southwest Honshū had been the target of an air raid, which had leveled the city with a "blinding flash and violent blast". Later, U.S. President Harry S. Truman's broadcast was received, announcing the first use of an atomic bomb, and promising
At first, some refused to believe the Americans could have managed to build an atomic bomb. The Japanese knew enough about the potential process to know how very difficult it was (and the fact that both their Army and Navy had independent atomic-bomb programs had further complicated their own efforts). Admiral Soemu Toyoda, the Chief of the Naval General Staff, argued that even if the Americans had made one, they could not have many more. More detailed reports of the unprecedented scale of the destruction at Hiroshima were received, but two days passed before the government met to consider the changed situation.
At 04:00 on August 9, word reached Tokyo that the Soviet Union had broken the neutrality pact, declared war on Japan and launched an invasion of Manchuria. The senior leadership of the Japanese Army took the news in stride, grossly underestimating the scale of the attack. They did start preparations to impose martial law on the nation, with the support of Minister of War Anami, in order to stop anyone attempting to make peace.[21] Hirohito told Kido to "quickly control the situation" because "the Soviet Union has declared war and today began hostilities against us."[22]
The Supreme Council met at 10:30. Prime Minister Suzuki, who had just come from a meeting with the Emperor, said it was impossible to continue the war. Foreign Minister Tōgō Shigenori said that they could accept the terms of the Potsdam Declaration, but they needed a guarantee of the Emperor's position. Navy Minister Yonai said that they had to propose something — they could no longer afford to wait for better circumstances. In the middle of the meeting, news arrived that Nagasaki, on the west coast of Kyūshū, had been hit by a second atomic bomb. By the time the meeting ended, the Big Six had split 3–3. Suzuki, Tōgō, and Admiral Yonai favored Tōgō's one additional condition to Potsdam, while Generals Anami, Umezu, and Admiral Toyoda insisted on three further terms that modified Potsdam: that Japan handle her own disarmament, that Japan deal with any Japanese war criminals, and that there be no occupation of Japan.[23]
That afternoon, the full cabinet met, and likewise split, with neither Tōgō's position nor Anami's attracting a majority. Suzuki and Tōgō met with the Emperor, and Suzuki proposed an impromptu Imperial conference, which started just before midnight. Suzuki presented Anami's four-condition proposal as the consensus position of the Supreme Council. The other members of the Supreme Council spoke, as did Baron Hiranuma Kiichirō, the president of the Privy Council, who outlined Japan's inability to defend itself and its domestic problems, such as the shortage of food. Suzuki then addressed Emperor Hirohito, asking him to decide between the two positions. Although not recorded, from recollections of the participants, the Emperor's statement was:
According to General Sumihisa Ikeda and Admiral Zenshirō Hoshina, Privy Council President Hiranuma Kiichirō then turned to the Emperor and asked him: "Your majesty, you also bear responsibility (sekinin) for this defeat. What apology are you going to make to the heroic spirits of the imperial founder of your house and your other imperial ancestors?"[24]
Once the Emperor had left, Suzuki pushed the cabinet to accept the Emperor's will, which it did.
The Foreign Ministry sent telegrams to the Allies, announcing that Japan would accept the Potsdam Declaration but would not comprise any demand which would prejudice the prerogatives of the Emperor. That effectively meant that the Tennō would remain a position of real power within the government — power that was normally wielded in his name by the people at the tops of the military and governmental hierarchies.
The response from the Allies was received on August 12. On the status of the Emperor it said,
At the following cabinet meeting, Suzuki argued that they must reject this and insist on an explicit guarantee for the Imperial system. Anami returned to his position that there be no occupation of Japan. Afterwards, Tōgō told Suzuki that there was no hope of getting better terms, and Kido conveyed the Emperor's will that Japan surrender. In a meeting with the Emperor, Yonai spoke of his concerns about growing civil unrest,
On August 10, the cabinet drafted an "Imperial Rescript ending the War" following the emperor's indications that the declaration did not compromise any demand which prejudiced the prerogatives of His Majesty as a Sovereign Ruler.
On August 12, Hirohito informed the imperial family of his decision to surrender. One of his uncles, Prince Asaka, then asked whether the war would be continued if the kokutai (national polity) could not be preserved. The emperor simply replied "of course."[25]
On August 13, the Big Six and the cabinet were still deadlocked. The next day, with leaflets dropped from B-29s describing the Japanese offer of surrender and the Allied response, Suzuki, Kido, and the Emperor realized the day would end with either an acceptance of the American terms or a military coup. The Emperor met with the most senior Army and Navy officers. While several spoke in favor of fighting on, Field Marshall Shunroku Hata did not. As commander of the Second General Army, the headquarters of which had been in Hiroshima, Hata commanded all the troops defending southern Japan — the troops preparing to fight the "decisive battle". Hata said he had no confidence in defeating the invasion and did not dispute the Emperor's decision. The Emperor requested that his military leaders cooperate with him in ending the war.
At conference with cabinet and other councillors, Anami, Toyoda, and Umezu again made their case for continuing to fight, after which the Emperor said,
The cabinet immediately convened and unanimously ratified the Emperor's wishes. On 14 August 1945, the Suzuki cabinet decided to destroy vast amounts of material pertaining to matters related to war crimes and the war responsibility of the nation's highest leaders.[26]
During the night of August 14 and August 15, the final and largest bombing raid of the Pacific War was launched. Eight hundred bombers and two hundred fighters of the United States Army Air Corps dropped over 6,000 tons of explosives and incendiary weapons on eight Japanese cities. Even though this was less than half the explosive power of one of the atomic bombs, it did significant damage to the target cities.
Late on the night of August 12, 1945, Major Kenji Hatanaka, along with Lieutenant Colonels Masataka Ida, Masahiko Takeshita, and Inaba Masao, and Colonel Okitsugu Arao, the Chief of the Military Affairs Section, spoke to War Minister Anami Korechika, hoping for his support, and asking him to do whatever he could to prevent acceptance of the Potsdam Declaration. General Anami refused to say whether he would help the young officers in treason. As much as they needed his support, Hatanaka and the other rebels decided they had no choice but to continue planning and to pull off the coup on their own.
Hatanaka spent much of August 13 and the morning of August 14 gathering allies, seeking support from the higher-ups in the Ministry, and perfecting his plot. Around 21:30 on August 14, Hatanaka's rebels set their plan into motion. The Second Regiment of the First Imperial Guards had entered the palace grounds, doubling the strength of the battalion already stationed there, presumably to provide extra protection against Hatanaka's rebellion. However, Hatanaka, along with Lt. Col. Jirō Shiizaki, convinced the commander of the 2nd Regiment of the First Imperial Guards, Colonel Haga Toyojirō, of their cause, and (untruthfully) that the War Minister, Army Chief of Staff, and the commanders of the Eastern District Army and Imperial Guards Divisions were all in on the plan.
Originally, Hatanaka hoped that by simply occupying the palace, by simply showing the beginnings of a rebellion, the rest of the Army would be inspired and would rise up against the move to surrender. This philosophy guided him through much of the last days and hours and gave him the blind optimism to move ahead with the plan, despite having little support from his superiors. Having set all the pieces into position, Hatanaka and his co-conspirators decided that the Guard would take over the palace at 02:00. The hours until then were spent in continued attempts to convince their superiors in the Army to join the 'coup'. At about the same time, General Anami committed seppuku, leaving a message that, "I — with my death — humbly apologize to the Emperor for the great crime." Whether the crime involved losing the war, or the coup, remains unclear.
At some time after 01:00, Hatanaka killed Lt. General Takeshi Mori, Commander of the 1st Imperial Guards Division, when Mori refused to side with him. Hatanaka feared that Mori would order the Guards to stop the rebellion. Lt. Col. Shiizaki and Captain Shigetarō Uehara of the Air Force Academy were also present in the room, and Uehara is presumed to have killed Lt. Col. Michinori Shiraishi, Staff Officer of the 2nd General Army. These were the only two murders of the night. Hatanaka then used General Mori's official stamp to authorize Strategic Order No. 584, a false set of orders created by his co-conspirators, which would greatly increase the strength of the forces occupying the Imperial Palace and Imperial House Ministry, and "protecting" the Emperor. The Palace police were disarmed and all the entrances blocked; but as of yet, no one in the Imperial House Ministry was aware of what was transpiring. Over the course of the night, Hatanaka's rebels captured and detained eighteen people, including Ministry staff, and NHK workers sent to record the surrender speech.
The rebels, led by Hatanaka, spent the next several hours searching for the Imperial House Minister, the Lord of the Privy Seal, and the recordings of the surrender speech. They never found the recordings, which were hidden among pieces of bedding in an emergency cupboard. The search was made more difficult by a blackout, caused by Allied bombings, and by the archaic organization and layout of the Imperial House Ministry. Many of the rooms' names were unrecognizable to the rebels. During their search, the rebels cut nearly all of the telephone wires, severing communications between their prisoners on the Palace Grounds and the outside world.
Around 03:00, Hatanaka was informed by Lt Col Ida that the Eastern District Army was on its way to the Palace to stop him, and that he should simply give up. Finally, seeing his plan crumbling to pieces around him, Hatanaka tried to plead with the Chief of Staff of the Eastern District Army to be given at least ten minutes on the air (on NHK radio), to explain to the people of Japan what he was trying to accomplish and why. He was refused. Colonel Haga, commander of the 2nd Regiment of the First Imperial Guards, discovered that the Army was not, in fact, in support of this rebellion, and he ordered Hatanaka to leave the Palace Grounds.
Just before 05:00, as his rebellion continued its search, Major Hatanaka went to NHK studios, and, brandishing a pistol, tried desperately to get some airtime to explain his actions. A little over an hour later, after receiving a phone call from the Eastern District Army, Hatanaka finally gave up. He gathered his officers and walked out of the NHK studio.
By 08:00, the rebellion was entirely dismantled, having succeeded in holding the Palace Grounds for much of the night but ultimately failing to find the recordings. Hatanaka, on a motorcycle, and Lt. Col. Shiizaki on horseback, rode through the streets, tossing leaflets that explained their motives and their actions.
Within an hour before the Emperor's broadcast, sometime around 11:00, August 15, Major Hatanaka placed his pistol to his forehead, and pulled the trigger. In his pocket was found his death poem: "I have nothing to regret now that the dark clouds have disappeared from the reign of the Emperor."
At 12:00 on August 15, the Emperor's recorded speech to the nation, the Gyokuon-hōsō (Imperial Rescript on Surrender), was broadcast:
Japan's forces were still at war against the Soviets and Chinese, so managing their cease-fire and surrender was difficult. The Soviet Union continued to fight until early September, taking the Kuril Islands.
On August 28, the occupation of Japan began by Supreme Commander of the Allied Powers led by Douglas MacArthur. The formal surrender occurred on September 2, when representatives from the Empire of Japan signed Japanese Instrument of Surrender in Tokyo Bay aboard the USS Missouri. Japanese forces in South East Asia followed suit on September 12, 1945 in Singapore. Still, August 15 is considered both in Japan and the rest of the world to mark the end of World War II.
Following the signing of the instrument of surrender many further surrender ceremonies took place across Japan's remaining holdings in the Pacific. With many Japanese troops still fighting the Allied troops, often in remote areas, it took until early 1946 for all major units to actually lay down their arms. Some individuals, especially on small Pacific Islands, refused to surrender at all (believing the declaration to be propaganda or considering the act too much against their code). Some may never have heard of it. Hiroo Onoda, the last known survivor, emerged from his hidden retreat in the Philippines in 1974, while two other Japanese soldiers, who had joined communist guerillas at the end of the war, fought in southern Thailand until 1991.[27]
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