Rubuta ci gaba don wannan sakin layi - Bayan zaben 1913, Cook ya ba Deakin matsayin shugaban Hukumar Interstate, amma ya ƙi. A shekara ta 1914, bayan barkewar Yaƙin Duniya na I, ya yarda da bukatar da aka yi masa na shugabancin kwamitin sarauta don samar da abinci a lokacin yaƙin. Haɗin jama'a na ƙarshe na Deakin shine a matsayin shugaban tawagar Ostiraliya zuwa 1915 Panama <unk> Pacific International Exposition
a birnin San Francisco. Cook ne ya fara ba shi wannan rawar sannan kuma Andrew Fisher, wanda ya dawo a matsayin firaminista a watan Satumbar 1914. An nada shi ne gaba daya na bikin kuma yana da goyon bayan Fisher da mataimakinsa Billy Hughes. Koyaya, sa hannun Deakin ya kasance batun tsoma baki na siyasa daga ministan harkokin waje Hugh Mahon, kuma ya yanke shawarar komawa Australia da wuri.