Mezue ahịrịokwu na-esonụ: N'abalị mbụ nke ọnwa Ọgọstụ, afọ 1915, Mackinolty zigara ndị Australian Imperial Force, iduzi otu ndị ọrụ iri na atọ ndị ọzọ dị ka ndị nkwado maka ndị ọrụ ụgbọ elu nke Australia na-eje ozi na mgbasa ozi Mesopotamian. Ọ hapụrụ Melbourne ụbọchị itoolu ka e mesịrị n'ụgbọ mmiri RMS "Persia", wee rute Basra na 1 Septemba. Ndị otu Mackinolty sonyeere ozugbo na No. 30 Squadron Royal Flying Corps (nke mbụ Mesopotamian Half Flight AFC), nke kwagara n'obodo Kut mgbe ndị agha British Empire jidere ya na Agha Es Sinn. Ngalaba ahụ sonyere n'agha nke Ctesiphon na Nọvemba, ma hazie inye ndị agha Britain na ndị agha India na
Kut n'oge nnọchibido ahụ nke were site na Disemba 1915 ruo n'April sochirinụ.