Whakaotihia te rerenga e whai ake nei: I whakatairangahia a Charlesworth ki te Commodore rererangi i te 1 o Akuhata 1944. I te marama i muri mai ka tohua ia hei AOC North-Western Area (NWA) i Darwin, Northern Territory, hei whakakapi i te Air Vice Marshal Adrian "King" Cole. I tēnei wā o te pakanga, kei te anga whakamua nga Allies ki te raki, a kua heke te tere o nga mahi i te rohe o Darwin. I whakaara tonu a Charlesworth i nga awangawanga mo te No. 80 Wing, e whakahaere ana i nga roopu e toru o nga toa Spitfire, me te whakatupato i te rangatira o runga ka heke te wairua mena kaore i te whakawhiwhia ki tetahi mahi kaha ake i te pakanga, ki te whakawhiti ranei ki te tonga o Ahitereiria mo te okiokinga. I te Oketopa, i whakahaua te parirau ki te wehe atu i te NWA mo te turanga o Morotai ki te hono atu ki te ope patu nui a te RAAF, First Tactical Air Force; tenei nekehanga ka waiho a Charlesworth me nga roopu tekau ma rua i a ia, tae atu ki tetahi waahanga B-24 Liberator bomber taumaha me etahi atu roopu Spitfire e toru. I taua wā, i tautoko a NWA i te
whakaeke i runga i Leyte ki whakaeke i runga i tauranga hoariri, whakaurunga hinu, me te kaipuke i roto i te Dutch East Indies te whakamahi i Beaufighters, B-25 Mitchells, me Liberators. I haere tonu ēnei mahi i te marama o Noema ki te Hakihea. I te Paenga-whāwhā 1945, i tukuna e Charlesworth a Mitchells me Liberators ki tetahi kaikawe Hapanihi i arahina e te kaipuke; i pakaru nga kaipuke pahū i te kaipuke, a, i muri mai ka whakangaromia e nga kaipuke o raro o te Allied. I taua marama ano, i whakaekea e nga Liberator a NWA nga whaainga i Java i mua o te Pakanga o Tarakan i tiimata i te 1 o Mei. I te marama o Hōngongoi, kua ngaro te mana o Charlesworth i te nuinga o tona kaha i te mea e rua o ona parirau kaipatu pahū i tukuna ki te First Tactical Air Force.