Tuhia he tomokanga mō tēnei wāhanga - Whai muri i tēnei, ka whakatauhia te whakawhiti i te AIF ki Uropi ki te whai wāhi ki te whawhai i te taha o te Western Front. I te Poutu-te-rangi 1916, ko te 3rd Brigade, me te toenga o te I Anzac Corps i eke mai i Ihipa ki France. I te 23 o Hōngongoi 1916, i uru te piritiata ki tana pakanga nui tuatahi i te wa i whakaekea ai ki te whawhai i te Somme i Pozières, i ahu whakamua ai te Rōpū Tuatahi o Ahitereiria, ka hopu i te kainga. I te marama o Tihema 1916, ka tukuna e Sinclair-MacLagan te whakahau ki a Brigadier General Gordon Bennett, nana nei i arahi te piritihana mo te toenga o te pakanga. I muri mai, puta noa i te tau 1917 me te tau 1918 ka whawhai nga pakanga i Bullecourt, Ypres, Menin Road
, Passchendale, Hazebrouck, Amiens me te taha o te Raina Hindenburg i mua i te mutunga o te whawhai i te marama o Noema 1918.