Rubuta ci gaba ga wannan sakin layi - XX Bomber Command ya fara aikin jirgin sama a kan Japan a tsakiyar Yuni 1944. Na farko hari ya faru a cikin dare na 15/16 Yuni lokacin da 75 B-29s aka aika zuwa kai farmaki da Imperial Iron da Karfe Works
a Yawata a arewacin Kyūshū. Wannan harin ya haifar da lalacewa kaɗan kuma ya kashe B-29 guda bakwai, amma ya sami farin ciki a cikin kafofin watsa labarai a Amurka kuma ya nuna wa fararen hula na Japan cewa yakin ba shi da kyau. Sojojin Japan sun fara fadada rundunar mayakan a cikin tsibiran gida bayan harin da aka kaiwa Yawata, kuma a watan Oktoba, an sanya jiragen sama 375 ga bangarorin tsaro na iska guda uku. Wadannan ƙungiyoyi sun kasance game da wannan ƙarfin har zuwa Maris 1945. Arnold ya sauya kwamandan Kwamandan Bomber na XX, Brigadier Janar Kenneth Wolfe, jim kadan bayan harin da aka kaiwa Yawata lokacin da ya kasa yin hare-haren bin diddigin Japan saboda rashin wadataccen man fetur a sansanonin da ke China. An maye gurbin Wolfe da Manjo Janar Curtis LeMay, wani tsohon soja na Rundunar Sojan Sama ta 8 da ke kai hare-hare kan Jamus.