 Berryman akabatana neSecond Australian Imperial Force AIF musi wa4 Kubvumbi 1940 aine chinzvimbo chemakorona akazara, uye akazova General Staff Officer Giredhi 1 GSO1 ye6th Division. Akanga ane mutoro webasa revashandi pakurwiswa kweBardia neTobruk. Muna Ndira 1941, Berryman akava Commander, Royal Artillery, 7th Division, uye akasimudzirwa kuva brigadier. Mukati meSyria-Lebanon mushandirapamwe, akaraira Berryforce. Akadzokera kuAustralia muna 1942, achiva Major General, General Staff, weFirst Army. Gare gare gore iroro, akava Mutevedzeri Mukuru weGeneral Staff pasi peMutungamiri Mukuru, General Sir Thomas Blamey, uyo akamuunza kuPort Moresby kuti aite panguva imwe chete semukuru wevashandi veNew Guinea Force. Berryman aibatanidzwa zvikuru nekuronga nekuita mushandirapamwe weSalamauaLae uye mushandirapamwe weHuon Peninsula. MunaNovember 1943 akava mutungamiri weII Corps, yaakatungamira muhondo yeSio. Muchikamu chokupedzisira chehondo, akanga ari mumiriri waBlamey padzimbahwe raGeneral of the Army Douglas MacArthur uye mumiriri weuto reAustralia pakunzwa kweJapan muTokyo Bay. 