 Nyorai kuenderera mberi kweiyi ndima - Mukupera kwaJune uye kutanga kwaJuly, mauto eAllied akanga achifambira mberi akananga kuSalamaua, ave akachengetedza nhandare yendege paWaupakutanga kwegore. Sezvo mauto eAustralia airwa akapoteredza Mubo neBobdubi, varongi veAllied vakasarudza kudiwa kwekubvisa zvimwe zvezvinhu zvinorema pamhepo yavo nekutora Nassau Bay, iyo yaiva kumaodzanyemba kwechinangwa chekupedzisira cheAllies. Kwemazuva anoverengeka mukuvamba kwaJuly, rimwe uto rakasimbiswa re162nd Infantry Regiment, pasi pokutungamirirwa kwaColonel Archibald MacKechnie, rakasvika muNassau Bay risingapikiswi. Vakatsigirwa neAustralia a href26th20Battalion2028Australia2926th Infantry Battaliona, iyo yakagadzira kutsausa mauto eJapan kubva pamhenderekedzo yekumhara. Zvikamu zvePapuan Infantry Battalion PIB zvakapa chengetedzo uye mushure mekumhara, mauto eU.S. akagadzira beachhead kuNassau Bay. Kutevera kumhara kwokutanga, mamwe mabhatani maviri e162nd Infantry Regiment akaendeswa kuNassau Bay pamwe chete neAustralia neUS artillery support. 