On 29 June 1946, just a day before the first U.S. atomic test at Bikini Atoll, the U.S. and British governments released three separate reports on the effects of the atomic bomb. The same-day issuance of these reports that the British Mission to Japan, the U.S. Strategic Bombing Survey (USSBS), and the U.S. Army’s Special Manhattan Engineer District (MED) Investigating Group had written was not coincidental. The British government proposed a synchronized publication of the British Mission and the USSBS reports as white papers, and the U.S. government agreed. This article reconstructs the untold history behind these concurrent events. It highlights Britain’s paradoxical pursuit of international control of atomic energy and its pragmatic path toward nuclear development. Britain hoped to leverage its wartime partnership with the United States, which was moving toward a policy of nuclear monopoly, to achieve this goal. On the other hand, the anticipated authority and attention accorded to a white paper sparked confrontations in the United States—one between the U.S. Army and U.S. Navy, the other between the MED and the USSBS. Through close examination of archival materials, this article sheds new light on postwar Anglo-U.S. nuclear relations, inter-service rivalry, and contestation over public memory.
Purchase
Buy instant access (PDF download and unlimited online access):
Institutional Login
Log in with Open Athens, Shibboleth, or your institutional credentials
Personal login
Log in with your brill.com account
Associated Press. “Drastic Atom Bomb Defenses Proposed.” Arizona Republic, 30 June 1946, pp. 1, 11.
Associated Press. “U.S. Survey Discounts A-Bomb in Jap Defeat.” Detroit Free Press, 14 July 1946, p. 12.
“A-Bomb Drop Advanced.” Los Angeles Times, 30 June 1946, p. 1.
“Atomic Bomb—First Official Report on Damage to Japan—Full Text of U.S. Strategic Bombing Survey’s Findings.” United States News, 5 July 1946, pp. 63–78.
“Atomic Bomb Just Another Weapon: Nimitz.” Baltimore Sun, 7 October 1945, pp. 1–2.
“Atomic Bomb Would Cause 50,000 Deaths.” Observer, 30 June 1946, p. 5.
“Atom Ruin Shown in British Report.” New York Times, 30 June 1946, p. 4.
Baldwin, Hanson W. “For Future Defense.” New York Times, 10 October 1945, p. 12.
“Britons Set Mythical Toll for A-Bomb.” Indianapolis Star, 30 June 1946, p. 3.
The British Mission. The Effects of the Atomic Bombs at Hiroshima and Nagasaki. London: His Majesty’s Stationery Office, 1946.
Childs, Marquis. “Washington Calling.” Pittsburgh Post-Gazette, 2 July 1946, p. 6.
Childs, Marquis. “Washington Calling.” Newsday, 1 July 1946, p. 22.
Cornell, Douglas B. “U.S. Told to Plan Defense for Atom.” Detroit Free Press, 30 June 1946, pp. 1–2.
“Effects of Atom Bombs One Would Kill 50,000 in British City.” Scotsman, 1 July 1946, p. 5.
Folliard, Edward T. “B-29s Had Japs Ready to Quit, Official Report Discloses.” Washington Post, 14 July 1946, p. M1-2.
Folliard, Edward T. “Rays Alone Kill at One Mile, White House Told.” Washington Post, 30 June 1946, pp. B1, 3.
Hearings before Subcommittee of the Committee on Appropriations. House, 79th Cong., 1st sess., part 2. Washington, DC: U.S. Government Printing Office, 1945.
Hearings on S. 84 and S. 1482. Senate Committee on Military Affairs, 79th Cong., 1st sess. Washington, DC: U.S. Government Printing Office, 1945.
“To Make You Think: The Effect of An Atom Bomb on a British City.” Illustrated London News, 13 July 1946, p. 44.
Leviero, Anthony. “Atom Bomb Survey Cites Peril to U.S.” New York Times, 30 June 1946, p. 2.
Leviero, Anthony. “Japanese Defeat Laid to Air Attack.” New York Times, 14 July 1946, p. 13.
Manhattan Engineer District. The Atomic Bombings of Hiroshima and Nagasaki. New York: Manhattan Engineer District, 1946. In Book I, Vol. 4, Chapter 8, Part II. National Archives and Records Service. The Manhattan Engineer District History. Wilmington, DE: Scholarly Resources, 1976, frames 244–292, https://www.osti.gov/includes/opennet/includes/MED_scans/Book%20I%20-General%20-%20Vol.%204-Chapter%208-Press%20Releases-Part%202.pdf.
Manhattan Engineer District. The Manhattan Engineer District History. Wilmington, DE: Scholarly Resources, 1976.
Manly, Chesly. “Survey Denies A-Bomb Caused Jap Surrender.” Chicago Daily Tribune, 30 June 1946, p. 12.
Manly, Chesly. “Survey Reveals How Air Blows Riddled Japan.” Chicago Daily Tribune, 21 July 1946, p. 16.
Manning, Robert. “Neither A-Bomb Nor Russia Forced Japan Surrender, Says 12-Man Survey.” Boston Daily Globe, 14 July 1946, p. C8.
National Security Archive. “80th Anniversary of the Atomic Bombings: Revisiting the Record,” 25 September 2025, https://nsarchive.gwu.edu/briefing-book/nuclear-vault/2025-09-25/80th-anniversary-atomic-bombings-revisiting-record#-ednref29.
“One A-Bomb Capable of Killing 100,000.” Los Angeles Times, 30 June 1946, p. 3.
“O.P.A. Killed by Truman’s VETO.” Los Angeles Times, 30 June 1946, pp. 1, 5.
“OPA Price Controls End at Midnight Tonight.” New York Times, 30 June 1946, pp. 1, 26, 29.
Papers of Edwin A. Locke Jr. Harry S. Truman Presidential Library and Museum. Independence, MO.
Papers of Harry S. Truman. Harry S. Truman Presidential Library and Museum. Independence, MO.
Papers of Leslie R. Groves Jr. National Archives II. College Park, MD.
Papers of Robert P. Patterson. Library of Congress. Washington, DC.
Records of the Cabinet Office. British National Archives. Kew, UK.
Records Created or Inherited by the Air Ministry, the Royal Air Force, and Related Bodies. British National Archives. Kew, UK.
Records of the Home Office, Home Security, and Related Bodies. British National Archives. Kew, UK.
Records of the Office of the Chief of Engineers. Record Group 77. National Archives II. College Park, MD.
Records of the Office of the Secretary of War. Record Group 107. National Archives II. College Park, MD.
Records of the United States Strategic Bombing Survey. Record Group 243. National Archives II. College Park, MD.
Records of the War Department General and Special Staffs. Record Group 165. National Archives II. College Park, MD.
Resume of Studies by Japanese Doctors in Nagasaki. Report of the Joint Commission II. Washington, DC: Army Institute of Pathology, 1951.
Reuters. “Atom Bomb Raids Killed 120,000 People.” Hindustan Times, 1 July 1946, p. 7.
Reynolds, H. K. “A-Bomb More Terrible Than Reports Showed, Official Survey Reveals.” Atlanta Constitution, 30 June 1946, p. 14A.
Section 10, Atomic Energy Act of 1946, Public Law 585, https://doe-humangenomeproject.ornl.gov/wp-content/uploads/2023/02/Atomic_Energy_Act_of_1946.pdf.
Senate Special Committee on Atomic Energy. S. 179, 79th Cong., 1st Sess. Washington, DC: U.S. Government Printing Office, 1945.
Stimson, Henry L. “The Decision to Use the Atomic Bomb.” Harper’s Magazine 194, No. 1161 (February 1947): 97–107.
U.S. Department of State. Foreign Relations of the United States. Conference at Quebec 1944. Washington, DC: U.S. Government Printing Office, 1972.
U.S. Department of State. Foreign Relations of the United States. Conferences at Washington and Quebec 1943. Washington, DC: U.S. Government Printing Office, 1970.
U.S. Department of State. Foreign Relations of the United States. 1945. The British Commonwealth. Vol. VI: The Far East. Washington, DC: U.S. Government Printing Office, 1969.
U.S. Department of State. Foreign Relations of the United States. 1945. Vol. II: General: Political and Economic Matters. Washington, DC: U.S. Government Printing Office, 1967.
U.S. Department of State. Foreign Relations of the United States. 1946. Vol. I: General: The United Nations. Washington, DC: U.S. Government Printing Office, 1972.
USSBS. Summary Report (Pacific War). Washington, DC: U.S. Government Printing Office, 1 July 1946.
USSBS. Transcripts of Interrogations of Japanese Industrial, Military, and Political Leaders, 1945–1946. 9 Microfilms. Wilmington, DE: Scholarly Resources, 1992.
USSBS [United States Strategic Bombing Survey] Chairman’s Office. The Effects of Atomic Bombs on Hiroshima and Nagasaki. Washington, DC: U.S. Government Printing Office, 1946.
USSBS [United States Strategic Bombing Survey] Chairman’s Office. Japan’s Struggle to End the War. Washington, DC: U.S. Government Printing Office, 1946.
USSBS Morale Division. The Effects of Strategic Bombing on Japanese Morale. Washington, DC: U.S. Government Printing Office, 1947.
Weir, Frank H. “Big U.S. Cities Found as Collapsible as Jap Towns if Hit by A-Bomb.” Philadelphia Inquirer, 30 June 1946, pp. 1, 3.
Ball, S. J. 1995. “Military Nuclear Relations Between the United States and Great Britain Under the Terms of the McMahon Act, 1946–1958.” Historical Journal 38 (2): 439–54. https://doi.org/10.1017/s0018246x0001949x.
Baylis, John , and Anthony Eames . 2023. Sharing Nuclear Secrets: Trust, Mistrust, and Ambiguity in Anglo-American Nuclear Relations Since 1939. Oxford: Oxford University Press.
Bernstein, Barton J. 1995. “Compelling Japan’s Surrender Without the A‐Bomb, Soviet Entry, or Invasion: Reconsidering the U.S. Bombing Survey's Early‐Surrender Conclusions.” Journal of Strategic Studies 18 (2): 101–48. https://doi.org/10.1080/01402399508437595.
Bernstein, Barton J. 1993. “Seizing the Contested Terrain of Early Nuclear History: Stimson, Conant, and Their Allies Explain the Decision to Use the Atomic Bomb.” Diplomatic History 17 (1): 35–72. https://doi.org/10.1111/j.1467-7709.1993.tb00158.x.
Beveridge, James . 1992. History of the United States Strategic Bombing Survey (Pacific), 1945-1946. Wilmington: Scholarly Resources.
Botti, Timothy J. 1987. The Long Wait: The Forging of the Anglo-American Nuclear Alliance, 1945-1958. New York: Green Press.
Brodie, Janet Farrell . 2015. “Radiation Secrecy and Censorship After Hiroshima and Nagasaki.” Journal of Social History 48 (4): 842–64. https://doi.org/10.1093/jsh/shu150.
Brooke, Stephan , eds. 1995. Reform and Reconstruction: Britain After the War, 1945-51. Manchester: Manchester University Press.
Cathcart, Brian . 1994. Test of Greatness: Britan’s Struggle for the Atom Bomb. London: John Murray.
Clark, Ian , and Nicholas J. Wheeler . 1989. The British Origins of Nuclear Strategy, 1945–1955. Oxford: Clarendon Press.
Davis, Vincent . 1962. Postwar Defense Policy and the U.S. Navy, 1943–1946. Chapel Hill: University of North Carolina Press.
Eiler, Keith E. 1997. Mobilizing America: Robert P. Patterson and the War Effort 1940–1945. Ithaca: Cornell University Press.
Gentile, Gian Peri . 2000. How Effective is Strategic Bombing? Lessons Learned from World War II to Kosovo. New York: New York University Press.
Gentile, Gian Peri . 1997. “Advocacy or Assessment? The United States Strategic Bombing Survey of Germany and Japan.” Pacific Historical Review 66 (1): 53–79. https://doi.org/10.2307/4492295.
Gormly, James L. 1984. “The Washington Declaration and the ‘Poor Relation’: Anglo-American Atomic Diplomacy, 1945-1946.” Diplomatic History 8 (2): 125–44. https://doi.org/10.1111/j.1467-7709.1984.tb00405.x.
Gowing, Margaret . 1964. Britain and Atomic Energy 1939–1945. London: Macmillan.
Gowing, Margaret . 1974. Independence and Deterrence: Britain and Atomic Energy 1945–52. Vol. 1: Policy Making. London: Macmillan.
Grant, Matthew . 2010. After the Bomb: Civil Defence and Nuclear War in Britain, 1945–68. Basingstoke: Palgrave Macmillan.
Grant, Matthew. “Civil Defence Policy in Cold War Britain, 1945–68.” Unpublished Ph.D. Dissertation. Queen Mary, University of London, 2008. London, UK.
Graybar, Lloyd J. 1986. “The 1946 Atomic Bomb Tests: Atomic Diplomacy or Bureaucratic Infighting?” Journal of American History 72 (4): 888–907. https://doi.org/10.2307/1908895.
Hathaway, Robert M. 1981. Ambiguous Partnership: Britain and America, 1944–1947. New York: Columbia University Press.
Herken, Gregg . 1988. The Winning Weapon: The Atomic Bomb in the Cold War 1945–1950. Princeton: Princeton University Press.
Hershberg, James G. 1993. James B. Conant: Havard to Hiroshima and the Making of the Nuclear Age. New York: Alfred A. Knopf.
Hewlett, Richard G. , and Oscar E. Anderson Jr . 1962. The New World: A History of the Atomic Energy Commission. Vol. I: 1939/1946. University Park: Pennsylvania State University Press.
Kerr, George D. 2005. Reassessment of the Atomic Bomb Radiation Dosimetry for Hiroshima and Nagasaki. Dosimetry System 2002, Vol. 1. Hiroshima: Radiation Effects Research Foundation.
Lee, Sabine . 2022. “Crucial? Helpful? Practically Nil? Reality and Perception of Britain’s Contribution to the Development of Nuclear Weapons During the Second World War.” Diplomacy and Statecraft 33 (1): 19–40. https://doi.org/10.1080/09592296.2022.2041805.
Legere, Laurence J. 1988. Unification of the Armed Forces. New York: Garland Publishing.
Newman, Robert P. 1995. “Ending the War with Japan: Paul Nitze’s ‘Early Surrender’ Counterfactual.” Pacific Historical Review 64 (2): 167–94. https://doi.org/10.2307/3640894.
Paul, Septimus H. 2000. Nuclear Rivals: Anglo-American Atomic Relations, 1941-1952. Columbus: Ohio State University Press.
Ridler, Jason S. 2015. Maestro of Science: Omond McKillop Solandt and Government Science in War and Hostile Peace, 1939–1956. Toronto: University of Toronto Press.
Schwartz, Rebecca P. “The Making of the History of the Atomic Bomb: Henry Dewolf Smyth and the Historiography of the Manhattan Project.” Unpublished Ph.D. Dissertation. Princeton University, 2008. Princeton, NJ.
Shigesawa, Atsuko. “Demystifying the Atomic Bomb: The U.S. Strategic Bombing Survey Goes to Hiroshima and Nagasaki.” Unpublished Ph.D. Dissertation. Hiroshima City University, 2019. Hiroshima, Japan.
Shlaim, Avi . 1975. “Britain’s Quest for a World Role.” International Relations 5 (1): 838–56. https://doi.org/10.1177/004711787500500105.
Smyth, H. D. 1976. “The ‘Smyth Report’.” Princeton University Library Chronicle 37 (3): 173–89. https://doi.org/10.2307/26404011.
Szasz, Ferenc Morton . 1992. British Scientists and the Manhattan Project. London: Macmillan.
Tannenwald, Nina . 2007. The Nuclear Taboo: The United States and the Non-Use of Nuclear Weapons Since 1945. Cambridge: Cambridge University Press.
Weisgall, Jonathan M. 1994. Operation Crossroads: The Atomic Tests at Bikini Atoll. Annapolis: Naval Institute Press.
Wellerstein, Alex . 2021. Restricted Data: The History of Nuclear Secrecy in the United States. Chicago: University of Chicago Press.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 28 | 28 | 28 |
| Full Text Views | 2 | 2 | 2 |
| PDF Views & Downloads | 8 | 8 | 8 |
On 29 June 1946, just a day before the first U.S. atomic test at Bikini Atoll, the U.S. and British governments released three separate reports on the effects of the atomic bomb. The same-day issuance of these reports that the British Mission to Japan, the U.S. Strategic Bombing Survey (USSBS), and the U.S. Army’s Special Manhattan Engineer District (MED) Investigating Group had written was not coincidental. The British government proposed a synchronized publication of the British Mission and the USSBS reports as white papers, and the U.S. government agreed. This article reconstructs the untold history behind these concurrent events. It highlights Britain’s paradoxical pursuit of international control of atomic energy and its pragmatic path toward nuclear development. Britain hoped to leverage its wartime partnership with the United States, which was moving toward a policy of nuclear monopoly, to achieve this goal. On the other hand, the anticipated authority and attention accorded to a white paper sparked confrontations in the United States—one between the U.S. Army and U.S. Navy, the other between the MED and the USSBS. Through close examination of archival materials, this article sheds new light on postwar Anglo-U.S. nuclear relations, inter-service rivalry, and contestation over public memory.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 28 | 28 | 28 |
| Full Text Views | 2 | 2 | 2 |
| PDF Views & Downloads | 8 | 8 | 8 |