Rubuta ci gaba don wannan sakin layi - Bayan shan kashi a lokacin yakin Tekun Coral a farkon watan Mayu, an tilasta wa rundunar sojojin Japan da ke kan hanyar zuwa Port Moresby komawa baya, yayin da a ranar 4 ga Yuni aka doke Jafananci a Midway
da rundunar sojin ruwan Amurka. Duk da wadannan koma baya duk da cewa sojojin Japan a Rabaul da Lae sun bayyana suna shirin kai hari kan Port Moresby daga arewacin Papua, ta hanyar Buna da Kokoda. A wannan lokacin ne kawai ƙungiyar Allied a yankin Kudu maso Yammacin Pacific da ke ci gaba da tsunduma cikin Jafananci ita ce Kanga Force, wacce ta ƙunshi NGVR da 1st da &lt; a href="2/5th%20Commando%20Squadron%20%28Australia%29"&gt; 2/5th Independent Companies&lt;/a&gt;, suna yaƙi da yaƙin neman zaɓe a kan Jafananci a kusa da Lae da Salamaua. A watan Yunin 1942 Morris ya ba da umarnin PIB tare da bincika yankin Awala'i Tufi'ioma. Don fuskantar barazanar Japan, Allies sun shirya gina filayen jirgin sama a yankin Buna <unk> Dobodura don sauƙaƙe ayyukan da Rabaul da kuma tabbatar da shi don hana duk wani ci gaba daga wannan shugabanci. Yayin da lamarin ya ta'azzara, an tura PIB <unk> tare da karfin jami'ai 30 da maza 280 <unk> don yin sintiri a gabar tekun arewacin Papua kuma daga baya aka watse a wani yanki mai fadi. Tare da Battalion na 39 (ƙananan kamfani ɗaya), da kuma samar da kayan aiki da na likitanci, sun kasance wani ɓangare na Maroubra Force.