Kammala jumla mai zuwa: A watan Janairun 1943, rundunar ta koma Australia a cikin jigilar "Ile de France" a matsayin wani ɓangare na ƙarshe na canja wurin sojojin Australiya daga Gabas ta Tsakiya zuwa Pacific. Bayan barin, 2/12th ya sake kafa a Kairi, a kan Atherton Tablelands a Queensland a watan Afrilu 1943. Wani lokaci na sake tsarawa da horarwa ya biyo baya yayin da aka shirya 2/12th don tsananin yakin basasa. A ƙarshen Yuli, sun shiga ƙungiyoyi a Cairns a kan wasu sufuri da suka hada da Van Heutz, W Ellery Channing, da kuma Van Der Lijn, zuwa New Guinea inda za su shiga yakin da Japan. Bayan ya isa Milne Bay a watan Agusta, sai suka shiga cikin saukowa a kusa da Lae sannan Finschhafen a watan Satumba, kuma sun ga aikin a lokacin yakin Huon Peninsula. Taimakawa Brigade na 20 na Soja a lokacin saukowa na farko a kusa da Scarlet Beach, da zarar Finschhafen ya sami tsaro, bindigogi na bindigogi sun goyi bayan harin da aka kai a kan Sattelberg daga bakin tekun, kafin tallafawa ci gaba da ci gaba a arewa a matsayin wani ɓangare na motsawa zuwa Sio kafin ya koma Australia a farkon 1944. Bayan horo na shekara-shekara a kusa da Ravenshoe, Queensland, rundunar ta gudanar da yakin karshe na yakin a 1945, ta samar da tallafin wuta a lokacin yakin Arewacin Borneo. An sanya shi don tallafawa Brigade na 24 na Infantry, a lokacin
Saukowa a kan Labuan sojojin biyu na 2/12th sun zo bakin teku tare da sojojin da ke kai hari a cikin LVTs, wani abu da sojojin Australia ba su yi ba a baya. Daga bisani, a watan Yuni, an tura bindigogi 14 daga rundunar ta hanyar jirgin ruwa don tallafawa ayyukan da ke kusa da Weston da Beaufort. Yankin da ke cikin yankin ya haifar da matsala ga masu bindigar, waɗanda dole ne su tallafawa ƙasa tare da itacen kwakwa. A ƙarshen yaƙin, an rushe rukunin tare da shigar da littafin tarihin yaƙi na ƙarshe da aka yi a ranar 1 ga Maris 1946.