page_title: Air raids on Japan
section_title: Attacks on small cities
hierarchical_section_title: Air raids on Japan / Attacks on small cities
caption_attribution_description: English: Map of Japan showing the cities attacked by United States Army Air Forces B-29 bombers during World War II
context_page_description: Allied forces conducted many air raids on Japan during World War II, causing extensive destruction to the country's cities and killing between 241,000 and 900,000 people. During the first years of the Pacific War these attacks were limited to the Doolittle Raid in April 1942 and small-scale raids on military positions in the Kuril Islands from mid-1943. Strategic bombing raids began in June 1944 and continued until the end of the war in August 1945. Allied naval and land-based tactical air units also attacked Japan during 1945.
  The United States military air campaign waged against Japan began in earnest in mid-1944 and intensified during the war's last months. While plans for attacks on Japan had been prepared prior to the Pacific War, these could not begin until the long-range B-29 Superfortress bomber was ready for combat. From June 1944 until January 1945, B-29s stationed in India staged through bases in China to make a series of nine raids on targets in western Japan, but this effort proved ineffective. The strategic bombing campaign was greatly expanded from November 1944 when bases in the Mariana Islands became available as a result of the Mariana Islands Campaign.
context_section_description: In mid-June Arnold visited LeMay's headquarters at Saipan. During this visit he approved a proposal for XXI Bomber Command to attack 25 relatively small cities with populations ranging from 62,280 to 323,000 while also continuing precision raids on major targets. This decision was made despite a recommendation from the United States Strategic Bombing Survey (USSBS) team, which was assessing the effectiveness of air attacks on Germany, that operations against Japan should focus on the country's transportation network and other targets with the goal of crippling the movement of goods and destroying food supplies. LeMay's plan called for precision attacks on important industrial targets on days when the weather over Japan was clear and incendiary attacks guided by radar on overcast days. As both the cities and industrial facilities targeted were relatively small, the B-29 force would be sent against multiple locations on days in which attacks were conducted. This targeting policy, which was labeled the "Empire Plan", remained in force until the last days of the war.
  Five major precision bombing attacks were conducted as part of the Empire Plan. On 9 June, two groups of B-29s bombed an aircraft factory at Narao and another two groups raided a factory in Atsuta; both facilities were badly damaged. A single group of Superfortresses also attempted to bomb a Kawasaki Aircraft Industries factory at Akashi but accidentally struck a nearby village instead. The next day, XXI Bomber Command bombers escorted by 107 P-51s successfully attacked six different factories in the Tokyo Bay region. Precision bombing raids were also conducted on 22 June, when 382 B-29s attacked six targets at Kure, Kakamigahara, Himeji, Mizushima and Akashi in southern Honshu. Most of the factories targeted were badly damaged. Four days later, 510 B-29s escorted by 148 P-51s were sent against nine factories in southern Honshu and Shikoku. Heavy clouds over the region meant that many bombers attacked targets of opportunity individually or in small groups, and little damage was done to the raid's intended targets. Cloudy weather prevented any further large-scale precision attacks until 24 July, when 625 B-29s were dispatched against seven targets near Nagoya and Osaka. Four of the factories attacked suffered heavy damage. Renewed cloudy weather prevented any further Empire Plan precision attacks in the last weeks of the war.
  XXI Bomber Command began incendiary raids against small cities from 17 June. On that night, Hamamatsu, Kagoshima, Ōmuta, Yokkaichi were each attacked by a wing of B-29s using similar tactics to those employed in the firebombing raids against the major cities. Of the 477 B-29s dispatched, 456 struck their targets and Hamamatsu, Kagoshima, Yokkaichi suffered extensive damage; overall 6.073 square miles (15.73 km²) of buildings were destroyed. The cities were almost undefended and no B-29s were lost to Japanese actions. This operation was judged a success, and set the pattern for XXI Bomber Command's firebombing attacks until the end of the war. As the campaign continued and the most important cities were destroyed, the bombers were sent against smaller and less significant cities. On most nights that raids were conducted, four cities were attacked, each by a wing of bombers. Two-wing operations were conducted against Fukuoka on 19 June and Ōmuta on 26 July, however. Sixteen multi-city incendiary attacks had been conducted by the end of the war (an average of two per week), and these targeted 58 cities. The incendiary raids were coordinated with precision bombing attacks during the last weeks of the war in an attempt to force the Japanese government to surrender. As the small cities were not defended by anti-aircraft guns and Japan's night-fighter force was ineffective, only a single B-29 was shot down during this campaign; a further 66 were damaged and 18 crashed as a result of accidents.
  The firebombing campaign against small cities continued through June and July. On the night of 19 June B-29s struck Fukuoka, Shizuoka and Toyohashi. On 28 Ju
caption: Japanese cities attacked by B-29 bombers during World War II
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