Kammala jumla mai zuwa: wani makaman jirgin ruwa ne wanda ke Hikari, Yamaguchi Prefecture, Japan. An bude shi a ranar 1 ga Oktoba, 1940. Ya samar da karfe, injuna, bindigogi, torpedoes, da bama-bamai don Rundunar Sojan Ruwa ta Japan. An kai harin bam ne da yammacin ranar 14 ga Agusta, 1945 (ranar da za a yi bikin tunawa da ranar da aka kafa dokar 'yancin kai a ƙasar)
Bayar da Japan) ta ƙungiyoyin bama-bamai B-29 guda huɗu. An bayar da rahoton cewa an kai harin ne bayan da Sarkin sarakuna Hirohito ya fara sakon sa na mika wuya ga mutanen Japan. Kwamitin Bomber na XXI ne ya aiwatar da shi, wanda aka sanya shi a matsayin aikin 325. Lambar da aka yi amfani da ita ita ce "Thunderhead"