Dee ihe ga-eso paragraf a - Mgbe Briten kwusịrị Germany agha n'abalị anọ n'ọnwa Ọgọstụ n'afọ 1914, Ọstrelia na mba ndị ọzọ so n'Alaeze Ukwu Briten nọkwa n'agha. Onye Australia mbụ nwụrụ na Western Front bụ Lieutenant William Malcolm Chisholm nke Lancashire Regiment, onye nwụrụ n'agha Le Cateau
na France n'August 26, 1914. Ka ha na-eru nso n'ụlọ, ndị agha Australia nwetara German New Guinea na Bismarck Archipelago na September-October 1914. Ndị Australia rutere na Gallipoli Peninsula na Turkey na 25 Eprel 1915. Ka ọ na-erule n'October 1915, ndị Australia furu efu ndị ikom 7,279 n'agha ahụ a lụrụ na Gallipoli, e merụkwara ọtụtụ puku ndị ọzọ ahụ. Ọ bụ ezie na ndị agha Australia wepụrụ na Gallipoli site na 20 Disemba 1915, achọrọ ndị ọzọ na Middle East na Western Front.