Tuhia he haere tonu mō tēnei wāhanga - I te tau 1915, ka riro i a ia te mana o te ope taua o te Bug, ā, i te wā kotahi ko ia te rangatira o Heeresgruppe Linsingen. I te Hune 1916, i anga atu tana Rōpū Hāhi ki te whakaeke a Brusilov
He aha? Whai muri i te wehenga tuatahi, i tirotirohia e ia te whakaekenga o Ruhia i te Pakanga o Kowel. I whakatairangahia ia ki te Koronela-Tianara, te taumata tuarua mo te rangatira i roto i te Imperial German Army (4 whetu). I te tau 1917-1918 me te mea i muri i te hainatanga o te Tiriti o Brest-Litovsk, i arahi ia i te haerenga a Tiamana ki Ukraine.