 Ramba uchiverenga ndima ino - Pakatanga Hondo yePacific, Harada aiva mutyairi wendege weMitsubishi A6M Zero aishandira mungarava inotakura ndege Sōryū, iyo yaiva chikamu che1st Air Fleet. Muchiitiko ichi, akatora chikamu mu1st Air Fleets series of operations mukati memwedzi yekutanga yehondo. Musi waDecember 7, 1941, akabhururuka achidzivirira ngarava panguva yeKurwiswa kwePearl Harbor, uye haana kuona chero hondo. Harada akaperekedzawo ndege yakarwisa chiteshi chengarava cheAustralia cheDarwinmusi wa19 February 1942. Munguva yeIndian Ocean raid, akasimbiswa kuti akapfura pasi varwi vatatu veBritain pamusoro peColombo musi wa5 Kubvumbi, uye akati vamwe vaviri vangangodaro. Mazuva mana gare gare, akadonhedza mabhomba maviri eBritain eBristol Blenheim akareruka ayo akanga achiedza kurwisa ngarava dzeJapan. 