Japan: Photos of the devastated cities of Hiroshima and Nagasaki after US atomic bombs
At 8:15am on 6 August 1945, a 4,400kg nuclear bomb nicknamed Little Boy was dropped on Hiroshima by an American B-29 Superfortress bomber, the Enola Gay, flown by Colonel Paul Tibbets.
Barack Obama has become the first sitting US president to visit Hiroshima, site of the world's first atomic bombing. The two governments hope Obama's tour of Hiroshima will highlight a new level of reconciliation and closer ties between the former enemies.
At 8:15am on 6 August 1945, a 4,400kg nuclear bomb nicknamed Little Boy was dropped on Hiroshima by an American B-29 Superfortress bomber, the Enola Gay, flown by Colonel Paul Tibbets. The bomb was detonated 2,000ft above Hiroshima, releasing energy equivalent to around 15,000 tonnes of TNT, flattening five square miles (13 square kilometres) of the city in seconds. More than 60% of the city's buildings were completely destroyed.
An estimated 80,000 people died immediately, but injuries and radiation took the final death toll to around 140,000 from Hiroshima's population of 350,000.
9 August 1945: Victims of the atomic bombing of Hiroshima are seen at an emergency relief station on the Otagawa River embankment in HiroshimaYotsugi Kawahara/Hiroshima Peace Memorial Museum/ReutersSeptember 1945. The remains of the Prefectural Industry Promotion Building, which was later preserved as the Hiroshima Peace Memorial, Atomic Bomb Dome or Genbaku DomeAFPSeptember 1945: A Japanese soldier walks through a flattened area of the cityNational Archives5 October 1945: Victims of the atomic blast sit in a makeshift hospital in a damaged bank building in the centre of HiroshimaKeystone/Getty ImagesOctober 1945: The skeleton of the Prefectural Industry Promotion Building, which was later preserved as the Hiroshima Peace Memorial, is seen through destroyed buildingsHiroshima Peace Memorial MuseumA patient's skin is burned in a pattern corresponding to the dark portions of a kimono worn at the time of the explosionNational ArchivesNovember 1945: People walk past the Hiroshima Red Cross Hospital a couple of months after the atomic bombUS Army/Hiroshima Peace Memorial Museum/ReutersThis colour photo of Hiroshima showing damage wrought by the atomic bomb was taken in March 1946, six months after the bomb was droppedReutersApril 12, 1946: Crew members of the Enola Gay proudly parade through New York on a Jeep in the first Army Day Parade since the end of the warGetty1946: Wreckage of buildings in Hiroshima, a year after the dropping of the atomic bombKeystone/Getty ImagesAugust 1946: A view of Hiroshima one year after the atomic bomb. It was estimated that 6,000 to 10,000 corpses still lay under the rubble of the city that was 60% destroyed by the blastKeystone/Getty ImagesCirca 1947: A victim of the atomic bombing of Hiroshima shows the burns on his armsGettyPatients at the Tokyo Imperial University Hospital display injuries suffered as a result of the atomic bomb that was dropped on HiroshimaGetty1948: People look out over the devastated city of Hiroshima three years after the bombingAFP
Three days after the Hiroshima bombing, a larger atomic bomb was dropped on Nagasaki. The 4,500kg bomb, nicknamed Fat Man, was dropped from a plane called Bockscar. Estimates of the number of deaths vary from 39,000 to 80,000 people. Japan surrendered on 15 August 1945, bringing the Second World War to an end.
29 March 1946: Bockscar, the plane that dropped the atomic bomb on Nakasaki, is seen in RoswellAFPFat Boy, the atomic bomb that was dropped on Nagasaki on 9 August 1945US National ArchivesA mushroom cloud billows over Nagasaki after the atomic bomb was dropped on the city on 9 August 1945ReutersThe radioactive plume from the bomb dropped on Nagasaki is seen from 9.6km away, in Koyagi-jimaNagasaki Atomic Bomb Museum/Getty ImagesSurvivors walk through the shattered city of NagasakiUS National ArchivesVictims who were thrown clear of a tram are seen in a ditch near the the tracks, in NagasakiReutersDevastation is seen in the city of Nagasaki after the atomic bomb was droppedUS National Archives24 September 1945: Battered religious figures lie in the rubble of a destroyed temple on a hill above NagasakiUS National Archives
A majority of Americans see the bombings as having been necessary to end the war and save lives, although some historians question that view. Most Japanese believe they were unjustified.