 Rambai muchinyora ndima ino - Hondo Yenyika II yakanga iri nguva yokuchinja kukuru nokuda kwenyika dzose dziri mbiri, sezvo vakaziva kuti vakanga vasingachagoni kuvimba nokudzivirirwa kweBritain. Australia yakarohwa zvikurukuru nokuziva uku, sezvo yakanga yakanangidzirwa zvakananga noUmambo hweJapan, neDarwin ichiputirwa mabhombauye Broome akarwisa. Pashure pacho, nyika dzose dziri mbiri dzakatsvaka ukama hwapedyo neUnited States. Izvi zvakaguma nechibvumirano cheANZUS cha1951, umo Australia, New Zealand neUnited States vakabvumirana kudzivirirana kana vavengi vakarwiswa. Kunyange zvazvo pasina kurwisa kwakadaro kwakaitika, sezvinobvira, September 11, 2001, Australia neNew Zealand zvose zvakapa mauto kuhondo dzeKorea neVietnam. Mupiro weAustralia kuHondo yeVietnam zvikurukuru wakanga wakakura zvikuru kupfuura weNew Zealand; nepo Australia yakatanga basa rokumanikidzirwa, New Zealand yakatumira simba rokufananidzira bedzi. Australia yakaramba yakazvipira zvikuru kusonganiro yeAmerica, ANZUS, kupfuura New Zealand; kunyange zvazvo nyika dzose dziri mbiri dzakanzwa kusagadzikana kukuru pamusoro pemitemo yeuto reAmerica muma1980, New Zealand yakatsamwisa United States nokuramba kupinda kwechiteshi chengarava kune zvikepe zvenyukireya munzvimbo yayo isina nyukireya kubva muna 1985 uye mukutsiva, United States yakamisa zvisungo zvayo zvaifanira kuNew Zealand pasi pechibvumirano chemubatanidzwa. Australia yakaita mupiro wakakura kuhondo yeIraq, nepo mupiro mudiki wemauto weNew Zealand wakaganhurirwa kumabasa ekuvakazve anotenderwa neUN. 