Pedzisa mutsara unotevera: Muna March, akadzokera kumaodzanyemba kunharaunda yakapoteredza Buna kugadzirira mabasa ekutora mahombekombe ose okuchamhembe kweNew Guinea. Munguva yekurwiswa kweHollandia, yekutanga yematanho mashanu ekusvetuka kune Vogelkop, "Welles" yakapiwa kuTask Group 77.2 (TG 77.2), Central Attack Group iyo yakaisa kurwiswa kwayo kuHumboldt Bay musi wa22 Kubvumbi. Inenge mwedzi gare gare, musi waMay 18, akatsigira kumhara paWakde Island uye paSarmi muNew Guinea mainland. Kubva ipapo, ngarava yehondo yakapfuurira nokudonha kwaGeneral Douglas MacArthur
kuBiak Island uko akapa rutsigiro rwekupfura panguva yekumhara uye nekusimbisa mashandiro kubva musi wa27 Chivabvu kusvika 2 Chikumi. Munguva iyoyo, rakaparadza ngarava dzeJapan dzinoverengeka, rakatambudza mauto epasi omuvengi, rakanyaradza bhatiri riri pamhenderekedzo yegungwa kana maviri uye rakabatsira kudzinga kurwisa kwendege kunoverengeka.