▁and ▁two ▁days ▁later ▁the ▁two ▁det ached ▁companies ▁rejo ined ▁the ▁batt alion . ▁Sub sequently , ▁several ▁engag ements ▁were ▁fought ▁with ▁the ▁Japanese ▁during ▁pat rol s ▁in ▁June ▁and ▁July , ▁but ▁these ▁were ▁mainly ▁small - scale ; ▁two ▁members ▁of ▁the ▁batt alion ▁were ▁killed ▁in ▁an ▁amb ush ▁around ▁Br une i ▁in ▁late ▁June , ▁the ▁heav iest ▁fighting ▁occurr ing ▁in ▁early ▁July , ▁when ▁a ▁pat rol ▁killed ▁over ▁ 2 0 ▁Japanese ▁in ▁a ▁short ▁but ▁sharp ▁encounter . ▁By ▁the ▁end ▁of ▁July , ▁a ▁draft ▁of ▁ 1 7 0 ▁long - service ▁personnel ▁were ▁released ▁to ▁return ▁to ▁Australia ▁in ▁early ▁August , ▁just ▁as ▁the ▁war ▁came ▁to ▁an ▁end . ▁Cas ual ties ▁for ▁the ▁ 2 0 th ▁Brigade ▁were ▁light ; ▁the ▁ 2 / 1 5 th ▁suffered ▁five ▁battle ▁cas ual ties ▁during ▁its ▁last ▁campaign , ▁two ▁killed ▁and ▁three ▁wounded . ▁ ▁Dis band ment ▁ ▁After ▁the ▁war , ▁the ▁ 2 / 1 5 th ▁remained ▁on ▁Br une i ▁until ▁November ▁when ▁it ▁moved ▁to ▁M emp ak ul ▁as ▁personnel ▁were ▁returned ▁to ▁Australia ▁in ▁draft s ▁based ▁on ▁priority ▁of ▁dis charge . ▁A ▁small ▁group ▁of ▁personnel ▁volunte ered ▁at ▁this ▁time ▁to ▁undert ake ▁occupation ▁duties ▁in ▁Japan ▁and ▁were ▁subsequently ▁transferred ▁to ▁the ▁ 6 6 th ▁or ▁ 6 7 th ▁Batt al ions . ▁In ▁early ▁December , ▁the ▁batt alion