[17], Scientists and officers held further discussion of bombing mission requirements, including height of detonation, weather, radiation effects (Oppenheimers memo), plans for possible mission abort, and the various aspects of target selection, including priority cities (a large urban area of more than three miles diameter) and psychological dimension. 8 devine street north haven, ct what is berth preference in irctc atomic bomb dropped to intimidate russia. [3].
Copy of How Should We Remember the Dropping of the A-Bomb? Docs.pdf To a great extent the documents selected for this compilation have been declassified for years, even decades; the most recent declassifications were in the 1990s. . That the original copy is missing from Berias papers suggests that he may have passed it on to Stalin before the latter left for the Potsdam conference. [Photograph: The atomic cloud rising over Nagasaki, Japan, August 9, 1945. Bush-Conant papers, S-1 Historical File, Reports to and Conferences with the President (1942-1944), National Archives, Record Group 77, Records of the Army Corps of Engineers (hereinafter RG 77), Manhattan Engineering District (MED), Minutes of the Military Policy Meeting (5 May 1943), Correspondence (Top Secret) of the Manhattan Engineer District, 1942-1946, microfilm publication M1109 (Washington, D.C.: National Archives and Records Administration, 1980), Roll 3, Target 6, Folder 23, Military Policy Committee, Minutes of Meetings, Before the Manhattan Project had produced any weapons, senior U.S. government officials had Japanese targets in mind. In reply, Roosevelt wrote a short memo endorsing Bushs ideas as long as absolute secrecy could be maintained. Private collections were also important, such as the Henry L. Stimson Papers held at Yale University (although available on microfilm, for example, at the Library of Congress) and the papers of W. Averell Harriman at the Library of Congress. Despite the bombing of Hiroshima, the Soviet declaration of war, and growing worry about domestic instability, the Japanese cabinet (whose decisions required unanimity) could not form a consensus to accept the Potsdam Declaration. Bernstein (1995), 146. President Franklin Roosevelt called the attack a day which will live in infamy, and the American people were shocked and angered. Sadao Asada emphasizes the shock of the atomic bombs, while Herbert Bix has suggested that Hiroshima and the Soviet declaration of war made Hirohito and his court believe that failure to end the war could lead to the destruction of the imperial house. The first Japanese surrender offer was intercepted shortly before Tokyo broadcast it.
Atomic Bomb Flashcards | Quizlet The Soviets already knew about the U.S. atomic project from espionage sources in the United States and Britain so Molotovs comment to Ambassador Harriman about the secrecy surrounding the U.S. atomic project can be taken with a grain of salt, although the Soviets were probably unaware of specific plans for nuclear use. [76]. Source: U.S. National Archives, College Park, MD, Record Group 373, Defense Intelligence Agency, Aerial Film, U.S., Army Air Force. Unaware of the findings of Health Division scientists, Groves and Rhea saw the injuries as nothing more than good thermal burns.[75], Documents 94A-B: General Farrell Surveys the Destruction, RG 77, Tinian Files, April-December 1945, box 17, Envelope B, A month after the attacks Groves deputy, General Farrell, traveled to Japan to see for himself the destruction of Hiroshima and Nagasaki. To get production going, Bush wanted to establish a carefully chosen engineering group to study plans for possible production. This was the basis of the Top Policy Group, or the S-1 Committee, which Bush and James B. Conant quickly established. On July 16, the first atom bomb was tested successfully at Alamogordo, N.M. On July 17, Truman sat down to talk with Stalin.
The Atomic Bombing of Hiroshima and Nagasaki, August 1945 In fact, after the bomb was dropped on Hiroshima on August 6, the Japanese military's Information Division, in charge of media control, intended to announce that the bomb was an atomic one. The record of this meeting has figured in the complex debate over the estimates of casualties stemming from a possible invasion of Japan. What Hirohito accepted, however, was a proposal by the extreme nationalist Kiichiro Hiranuma which drew upon prevailing understandings of the kokutai: the mythical notion that the emperor was a living god. Toward that end, in 2005, at the time of the 60th anniversary of the bombings, staff at the National Security Archive compiled and scanned a significant number of declassified U.S. government documents to make them more widely available. Such details and information may have been useful for the Soviet atomic bomb project, pushing the internal narrative that the USSR needed its own weapon as soon as possible. By early August he decided that 9-10 August 1945 would be the best dates for striking Japanese forces in Manchuria. See Bernstein (1995), 142. Officially named AN602 hydrogen bomb, it was originally intended to have a . RG 77, MED, H-B files, folder no. Barton Bernstein has also pointed to this as additional evidence of the influence on Stimson of an an older morality. While concerned about the U.S.s reputation, Stimson did not want the Air Force to bomb Japanese cities so thoroughly that the new weapon would not have a fair background to show its strength, a comment that made Truman laugh. bobert. Richard Frank sees this brief discussion of Japans interest in Soviet diplomatic assistance as crucial evidence that Admiral Leahy had been sharing MAGIC information with President Truman. Moreover, the role of an invasion of Japan in U.S. planning remains a matter of debate, with some arguing that the bombings spared many thousands of American lives that otherwise would have been lost in an invasion.
Experts: How Powerful, Widespread Is Fallout From a Nuclear Bomb? Read more, The Cold War International History Project supports the full and prompt release of historical materials by governments on all sides of the Cold War. Signed by about 68 Manhattan Project scientists, mainly physicists and biologists (copies with the remaining signatures are in the archival file), the petition did not explicitly reject military use, but raised questions about an arms race that military use could instigate and requested Truman to publicize detailed terms for Japanese surrender. [67], National Archives, RG 165, Army Operations OPD, Executive Files 1940-1945, box 12, Exec #2. See also Malloy, A Very Pleasant Way to Die, 539-540. Therefore, it is hard to believe that by November 1945, the Japanese press had any detailed, spontaneous reporting of the effects of the atomic bomb. For more recent contributions, see Sean Malloy,Atomic Tragedy: Henry L. Stimson and the Decision to Use the Bomb Against Japan(Ithaca: Cornell University Press, 2008), Andrew Rotter,Hiroshima: The World's Bomb(New York: Oxford, 2008), Campbell Craig and Sergey Radchenko,The Atomic Bomb and the Origins of the Cold War(New Haven, Yale University Press, 2008), Wilson D. Miscamble,The Most Controversial Decision: Truman, the Atomic Bombs, and the Defeat of Japan(New York: Cambridge University Press, 2011). [32], Record Group 353, Records of Interdepartmental and Intradepartmental Committees, Secretarys Staff Meetings Minutes, 1944-1947 (copy from microfilm). Maddox, 102; Alperovitz, 269-270; Hasegawa, 152-153. The warning would draw on the draft State-War proclamation to Japan; presumably, the one criticized by Hull (above) which included language about the emperor. [80]. zhuri james net worth 2021 .
Did America drop the bomb in revenge, to prevent the USSR spreading? Schaffer,Wings of Judgment, 143-146. Public Reaction to the Atomic Bomb and World Affairs, Cornell University, Ithaca, New York, April 1947. Interested in producing the greatest psychological effect, the Committee members agreed that the most desirable target would be a vital war plant employing a large number of workers and closely surrounded by workers houses. Bernstein argues that this target choice represented an uneasy endorsement of terror bombing-the target was not exclusively military or civilian; nevertheless, workers housing would include non-combatant men, women, and children. According to Meiklejohn, None of us doubt that the atomic bomb speeded up the Soviets declaration of war.. Eisenhower and McCloys Views on the Bombings and Atomic Weapons, National Security Archive Until 1949, when the USSR succeeded in testing its own bomb, the Soviet Unions knowledge of the effects of radiation was indeed very poor. Barton J. Bernstein, Eclipsed by Hiroshima and Nagasaki: Early Thinking about Tactical Nuclear Weapons,International Security15 (Spring 1991): 149-173; Marc Gallicchio, After Nagasaki: General Marshalls Plans for Tactical Nuclear Weapons in Japan,Prologue23 (Winter 1991): 396-404. Letters from Robert Messer and Gar Alperovitz, with Bernsteins response, provide insight into some of the interpretative issues. At their first meeting after the dropping of the bomb on Hiroshima, Stimson briefed Truman on the scale of the destruction, with Truman recognizing the terrible responsibility that was on his shoulders. Former Secretary of War Henry Stimson found the criticisms troubling and published an influential justification for the attacks inHarpers. Another column was striking south from the Soviet border toward Hailar. An intercepted message from Togo to Sato showed that Tokyo remained interested in securing Moscows good office but that it is difficult to decide on concrete peace conditions here at home all at once. [W]e are exerting ourselves to collect the views of all quarters on the matter of concrete terms. Barton Bernstein, Richard Frank, and Tsuyoshi Hasegawa, among others, have argued that the Magic intercepts from the end of July and early August show that the Japanese were far from ready to surrender. In 1991 articles, Barton Bernstein and Marc Gallicchio used this and other evidence to develop the argument that concepts of tactical nuclear weapons use first came to light at the close of World War II.[69]. Suite 701, Gelman Library The bombings were the first time that nuclear weapons had been detonated in combat operations. [80], Despite Trumans claim that he made the most terrible decision at Potsdam, he assigned himself more responsibility than the historical record supports. The ban on the public use of the phrase was officially lifted when the war ended on August 15, which prompted Hiroshimas local newspaper, the Chgoku Shimbun, to print a few photos of the destroyed city on August 23. [12]. Both cities were leveled from the bombs and this, in turn, forced Japan to surrender to the United States. While post-war justifications for the bomb suggested that an invasion of Japan could have produced very high levels of casualties (dead, wounded, or missing), from hundreds of thousands to a million, historians have vigorously debated the extent to which the estimates were inflated. The discussion of available targets included Hiroshima, the largest untouched target not on the 21st Bomber Command priority list. But other targets were under consideration, including Yawata (northern Kyushu), Yokohama, and Tokyo (even though it was practically rubble.) The problem was that the Air Force had a policy of laying waste to Japans cities which created tension with the objective of reserving some urban targets for nuclear destruction. Atomic Bomb Dbq; Atomic Bomb Dbq. As to how the war with Japan would end, he saw it as unpredictable, but speculated that it will take Russian entry into the war, combined with a landing, or imminent threat of a landing, on Japan proper by us, to convince them of the hopelessness of their situation. Lincoln derided Hoovers casualty estimate of 500,000. However, it is striking that none of the people sent to ground zero in the immediate aftermath of the bombings were scientists or technicians. 5. 76 (copy from microfilm), Physicists Leo Szilard and James Franck, a Nobel Prize winner, were on the staff of the Metallurgical Laboratory at the University of Chicago, a cover for the Manhattan Project program to produce fuel for the bomb. An entry from Admiral Tagaki's diary for August 8 conveys more information on the mood in elite Japanese circles after Hiroshima, but before the Soviet declaration of war and the bombing of Nagasaki. When the atomic bomb was dropped over Hiroshima and then Nagasaki, Americans felt both deep satisfaction and deep anxiety, and these responses have coexisted ever since. It occurred to me that a quarter of a million of the flower of our young manhood was worth a couple of Japanese cities, and I still think that they were and are. The combination of the first bomb and the Soviet declaration of war would have been enough to induce Tokyos surrender. One of the major reasons why the atomic bomb was dropped was to save American lives, at least so it is told by many sources. It is commonly believed that the awesome devastation of the atomic bombs caused the Japanese government to capitulate. Truman read Stimsons proposal, which he said was powerful, but made no commitments to the details, e.g., the position of the emperor. The original desire of the United States government when they dropped Little Boy and Fat Man on Hiroshima and Nagasaki was not, in fact, the one more commonly known: that the two nuclear devices dropped upon Hiroshima and Nagasaki were detonated with the intention of bringing an end to the war with Japan, but instead to intimidate the Soviet . [72]. For further consideration of Tokyo and more likely targets at the time, see Alex Wellerstein, Neglected Niigata,Restricted Data: The Nuclear Secrecy Blog, 9 October 2015. [77]. In later years, those who knew both thought it unlikely that the general would have expressed misgivings about using the bomb to a civilian superior. Targeting Germany was rejected because the Germans were considered more likely to secure knowledge from a defective weapon than the Japanese. Cited in Barton J. Bernstein, Truman and the A-Bomb: Targeting Noncombatants, Using the Bomb, and His Defending the "Decision,The Journal of Military History62 (1998), at page 559. "The US decision to drop an atomic bomb on Hiroshima was a diplomatic measure calculated to intimidate the USSR in the post-second World War era rather than strictly a military measure designed to force Japan to unconditionallysurrender" Procedure: Use the documents, textbook pages 845-849, and your knowledge of the era to support a position on Concerned with the long-run implications of the bomb, Franck chaired a committee, in which Szilard and Eugene Rabinowitch were major contributors, that produced a report rejecting a surprise attack on Japan and recommended instead a demonstration of the bomb on the desert or a barren island. Arguing that a nuclear arms race will be on in earnest not later than the morning after our first demonstration of the existence of nuclear weapons, the committee saw international control as the alternative. Some years after Trumans death, a hand-written diary that he kept during the Potsdam conference surfaced in his personal papers. Various personnel and guards are standing around the loading area.
Atomic Bomb Dbq - 1222 Words | 123 Help Me Stimson had in mind a carefully timed warning delivered before the invasion of Japan. [73]. (Truman finally cut off military aid to France to compel the French to pull back). The largest nuclear weapon ever set off, it produced the most powerful human-made explosion ever recorded. An illustration of a nuclear bomb exploding in a city. The dropping of two atomic bombs, the tremendous destruction caused by U.S. bombing, and the Soviet declaration of war notwithstanding, important elements of the Japanese Army were unwilling to yield, as was evident from intercepted messages dated 12 and 13 August. Relations between the United States and Japan worsened when Japanese forces took aim at Indochina with the goal of capturing oil rich areas of the East Indies. [61], Documents 73A-B: Ramsey Letter from Tinian Island, Library of Congress, J. Robert Oppenheimer Papers, box 60, Ramsey, Norman. On the morning of August 15, Hirohito broadcast the message to the nation (although he never used the word surrender). 576 words. According to an Eyewitness Account (and Estimates Heard) In Regard to the Bombing of Hiroshima: Casualties have been estimated at 100,000 persons., Zenshiro Hoshina, Daitoa Senso Hishi: Hoshina Zenshiro Kaiso-roku [Secret History of the Greater East Asia War: Memoir of Zenshiro Hoshina] (Tokyo, Japan: Hara-Shobo, 1975), excerpts from Section 5, The Emperor made go-seidan [= the sacred decision] the decision to terminate the war, 139-149 [translation by Hikaru Tajima]. Taking the Americans by surprise, the Japanese planes destroyed or damaged 18 ships . Alperovitz argues that the possibility of atomic diplomacy was central to the thinking of Truman and his advisers, while Bernstein, who argues that Trumans primary objective was to end the war quickly, suggests that the ability to cow other nations, notably the Soviet Union was a bonus effect. Maddox, 83-84; Hasegawa, 126-128. Nor does it include any of the interviews, documents prepared after the events, and post-World War II correspondence, etc. Brown Papers, box 68, folder 13, Transcript/Draft B, Returning from the Potsdam Conference, sailing on the U.S.S. 576 words. The force of B-29 nuclear delivery vehicles that was being readied for first nuclear usethe Army Air Forces 509th Composite Grouprequired an operational base in the Western Pacific. How much Power does a President actually have? [71]. 75 years ago, in August 1945, the United States dropped the first and last atomic bombs used in warfare. The documents introduced here were published in Russian for the first time in 1990, and the English version was included in an issue of the Soviet journal International Affairs (1990, no. [28], In a report to Stimson, Oppenheimer and colleagues on the scientific advisory panel--Arthur Compton, Ernest O. Lawrence, and Enrico Fermitacitly disagreed with the report of the Met Lab scientists. did not mean that the war would continue. Independence, MO 64050 For more on these developments, see Asada, "The Shock of the Atomic Bomb and Japan's Decision to Surrender: A Reconsideration," 486-488. Pressure from Secretary of War Stimson had already taken Kyoto off the list of targets for incendiary bombings and he would successfully object to the atomic bombing of that city. Merkulov reported that the United States had scheduled the test of a nuclear device for that same day, although the actual test took place 6 days later. It had nothing to do with Russia or Britain or Germany. Historians and the public continue to debate if the bombings were justified, the causes of Japan's surrender, the casualties that would have resulted if the U.S. had invaded Japan, and more. Historians have suggested a number of ways in which the atomic bomb might have alienated Stalin- 1.
Why the United States Did Not Demonstrate the Bomb's Power, Ahead of Secretary of Commerce (and former Vice President) Henry Wallace provided a detailed report on the cabinet meeting where Truman and his advisers discussed the Japanese surrender offer, Russian moves into Manchuria, and public opinion on hard surrender terms. The target is and was always expected to be Japan., These documents have important implications for the perennial debate over whether Truman inherited assumptions from the Roosevelt administration that the bomb would be used when available or that he madethedecision to do so. [46] During the meeting on August 24, discussed above, Stimson gave his reasons for taking Kyoto off the atomic target list: destroying that city would have caused such bitterness that it could have become impossible to reconcile the Japanese to us in that area rather than to the Russians. Stimson vainly tried to preserve language in the Potsdam Declaration designed to assure the Japanese about the continuance of their dynasty but received Trumans assurance that such a consideration could be conveyed later through diplomatic channels (see entry for July 24). olive tree children ministries; teaching blog; about our ministry; salvation prayer; contact us Since the end of WWII, the popular view in the U.S. has been that the bombing of Hiroshima and Nagasaki precipitated Japan's surrender on August 15. President Obama's visit to Hiroshima, nearly 71 years after it was destroyed by the first atomic bomb, inevitably raises once again the questions of why the United States dropped that bomb,. For Trumans recognition of mass civilian casualties, see also hisletter to Senator Richard Russell, 9 August 1945. A flash, stronger than the sun itself, followed by a fiery explosion within seconds completely annihilated the city. On the other hand much of the confirmed evidence Alperovitz presented was baffling. Responding to this threat, the United States placed an embargo on scrap metal, oil, and aviation fuel heading to Japan and froze Japanese assets in the United States. It is quite apparent that the United States did, in fact, drop the two atomic bombs, Little Boy and Fat Man on Hiroshima and Nagasaki respectively for the . [43]. Open Document. For emphasis on the shock of the atomic bomb, see also Lawrence Freedman and Saki Dockrill, Hiroshima: A Strategy of Shock, in Saki Dockrill, ed.,From Pearl Harbor to Hiroshima : the Second World War in Asia and the Pacific, 1941-1945(New York, St. Martins Press, 1994), 191-214. [74]. Probably the work of General George A. Lincoln at Army Operations, this document was prepared a few weeks before the Potsdam conference when senior officials were starting to finalize the text of the declaration that Truman, Churchill, and Chiang would issue there. [36]. [59a]. Seventy years ago this month, the United States dropped atomic bombs on Hiroshima and Nagasaki, the Soviet Union declared war on Japan, and the Japanese government surrendered to the United States and its allies. Two scientists at Oak Ridges Health Division, Henshaw and Coveyou, saw a United Press report in the Knoxville News Sentinel about radiation sickness caused by the bombings. 24 Jun . [20]. None of these sections are about damage to human beings.
Atomic Bomb Dbq Essay - 961 Words | Internet Public Library atomic bomb dropped to intimidate russiamike dean referee wife | Cited by Barton J. Bernstein, Eclipsed by Hiroshima and Nagasaki: Early Thinking About Tactical Nuclear Weapons,International Security15 (1991) at page 167. His vivid account shows that senior military officials in the Manhattan Project were no longer dismissive of reports of radiation poisoning. To this day, this is the largest nuclear weapon detonated. Also necessary for those capabilities was the production of a nuclear chain reaction. The cost of invasion, they knew, would be high. The U.S. reply, drafted during the course of the day, did not explicitly reject the note but suggested that any notion about the prerogatives of the Emperor would be superceded by the concept that all Japanese would be Subject to the Supreme Commander of the Allied Powers. The language was ambiguous enough to enable Japanese readers, upon Hirohitos urging, to believe that they could decide for themselves the Emperors future role. See also Barton J. Bernstein, Looking Back: Gen. Marshall and the Atomic Bombing of Japanese Cities, Arms Control Today, November 2015. Japans cultural capital, Kyoto, would not stay on the list. Documents 67A-B:Early High-level Reactions to the Hiroshima Bombing, Gaimusho (Ministry of Foreign Affairs) ed. To suggest alternatives, they drafted this memorandum about the importance of the international exchange of information and international inspection to stem dangerous nuclear competition. 816-268-8200 | 800-833-1225
US bombings on Hiroshima & Nagasaki were not to end WWII but to - RT Despite the interest of some senior officials such as Joseph Grew, Henry Stimson, and John J. McCloy in modifying the concept of unconditional surrender so that the Japanese could be sure that the emperor would be preserved, it remained a highly contentious subject. After the first successful test of the atomic bomb in 1945, U.S. officials immediately considered the potential non-military benefits that could be derived from the American nuclear monopoly. The museum has justfinished a massive renovation of the museum and its exhibitions, the first major renovation in more than 20 years and the largest since the museum opened its doors in 1957. (Photo from U.S. National Archives, RG 77-BT), Ground view of Nagasaki before and after the bombing; radiuses in increments of 1,000 feet from Ground Zero are shown. The George Washington University
Hiroshima bomb may have carried hidden agenda | New Scientist That is, the United States could possibly be in danger if the Nazis acquired more knowledge about how to build a bomb. Sato cabled Togo earlier that he saw no point in approaching the Soviets on ending the war until Tokyo had concrete proposals. Any aid from the Soviets has now become extremely doubtful.. Confronting the Problem of Radiation Poisoning, XII. Courtesy of Tim Brown.
Did Truman drop the atomic bombs to "impress" the Soviets? [3] The NASM exhibit was drastically scaled-down but historians and journalist continued to engage in the debate. For varied casualty figures cited by Truman and others after the war, see Walker,Prompt and Utter Destruction: Truman and the Use of Atomic Bombs Against Japan, 101-102. Sean Malloy, `A Very Pleasant Way to Die: Radiation Effects and the Decision to Use the Atomic Bomb against Japan,Diplomatic History36 (2012), especially 523. 1-127. 2130 H Street, NW According to a 2006 study by the Bulletin of the Atomic Scientists, while John F. Kennedy was campaigning in 1960 on the idea that there was a "missile gap" between the United States and Russia . [29]. Beginning in September 1940, U.S. military intelligence began to decrypt routinely, under the Purple code-name, the intercepted cable traffic of the Japanese Foreign Ministry.
atomic bomb dropped to intimidate russia - kedaksempoi.com What concepts did war planners use to select targets? That goal, he feared, raised terrifying prospects with implications for the inevitable destruction of our present day civilization. Once the U.S. had used the bomb in combat other great powers would not tolerate a monopoly by any nation and the sole possessor would be be the most hated and feared nation on earth. Even the U.S.s closest allies would want the bomb because how could they know where our friendship might be five, ten, or twenty years hence. Nuclear proliferation and arms races would be certain unless the U.S. worked toward international supervision and inspection of nuclear plants. However, the Department of the Interior opposed the disclosure of the nature of the weapon. Stimsons account of the events of 10 August focused on the debate over the reply to the Japanese note, especially the question of the Emperors status. Library of Congress Manuscript Division, Papers of W. Averell Harriman, box 181, Chron File Aug 5-9, 1945. Claypool, 1984) With such motivation to back them, the United States felt justified in dropping the atomic bomb in order to prevent the spread of communism in Europe by intimidating Russia. Whether or not the atomic bombs should have been dropped is a topic that is still debated. [62]. Togos proposal would have been generally consistent with a constitutional monarchy because it defined the kokutai narrowly as the emperor and the imperial household. The entry from Meiklejohns diary does not prove or disprove Eisenhowers recollection, but it does confirm that he had doubts which he expressed only a few months after the bombings. To what extent had Emperor Hirohito prolonged the war unnecessarily by not seizing opportunities for surrender? More statistics and a detailed account of the raid is in Ronald Schaffer,Wings of Judgment: American Bombing in World War II(New York: Oxford University Press, 1985), 130-137. [2]. For the maneuverings on August 9 and the role of thekokutai, see Hasegawa, 3-4, 205-214. Included are documents on the early stages of the U.S. atomic bomb project, Army Air Force GeneralCurtis LeMays reporton the firebombing of Tokyo (March 1945), Secretary of War HenryStimsons requestsfor modification of unconditional surrender terms,Soviet documentsrelating to the events, excerpts from the Robert P. Meiklejohn diaries mentioned above, and selections from the diaries of Walter J. John HerseysHiroshima, first published in the New Yorkerin 1946 encouraged unsettled readers to question the bombings while church groups and some commentators, most prominently Norman Cousins, explicitly criticized them. More than seventy years after the end of World War II, the decision to drop the atomic bombs on Hiroshima and Nagasaki remains controversial. On August 6, 1945, the United States dropped an atomic bomb on Hiroshima.