 Ramba uchinyora ndima iyi - Hondo Yenyika Yokutanga payakatanga muna August 1914, Morshead akasiya basa rake rokudzidzisa uye basa rake muCadet Corps kuti aende kuSydney uye kunyoresa sevarwi mu2nd Infantry Battalion yeFirst Australian Imperial Force. Akagadzwa kuva lieutenant muna September. Akasvika paAnzac Cove, Gallipolimusi wa 25 April 1915, uye battalion yake yakaita kufambira mberi kukuru kupfuura rimwe boka reAustralia zuva iroro. Akazobvumirwa kuenda kuAustralia, akava mutungamiri we33rd Infantry Battalion, yaakatungamirira kuWestern Front paMessines, Passchendaele, Villers-Bretonneux, uye Amiens. 