Rubuta ci gaba don wannan sakin layi - Sauka a Cairns, Queensland, bataliya daga baya ta kafa sansani a Ravenshoe, Queensland. Bayan wani lokaci na hutawa, horo da sake tsarawa, a watan Yulin 1943 bataliya ta sami rukuni na ƙarfafawa daga 5th Motor Regiment, wanda aka rushe. Ƙananan ƙungiyoyi na ƙarfafawa sun zo ne daga &lt;a href="2/40th%20Battalion%20%28Australia%29"&gt;2/40th Battalion&lt;/a&gt; ma'aikatan da suka guje wa kamawa a Timor
Ka yi haƙuri. A watan Agustan 1943, an tura 2/12th zuwa Port Moresby, inda aka gudanar da Brigade na 18 a cikin ajiyar rarrabuwa, yayin da sauran Rukunin na 7 suka kare hanyoyin zuwa Lae a matsayin wani ɓangare na kamfen na Finisterre Range. A ranar karshe ta shekara, an ba da bataliya ga fadace-fadace a cikin tsaunukan Finisterre. Daga baya sauran brigade suka haɗu da su a ranar 4 ga Janairu 1944 lokacin da aka kai shi Dumpu don sauƙaƙe Brigade na 21. A farkon shekarar 1944, 2/12th ya shiga cikin fada a kusa da Shaggy Ridge, inda suka kai hare-hare da dama a arewacin dutsen, a kusa da Protheroe I da II tsakanin 21 da 24 Janairu. Tsakanin Fabrairu da Afrilu, sun ci gaba da aiki a cikin Ramu Valley, suna yin sintiri kafin su koma Australia a cikin jigilar "Pahud" a watan Mayu 1944.