Whakaotihia te rerenga e whai ake nei: Ko te 9th Bavarian Reserve Division i whawhai i te Western Front, i kite i tana mahi tuatahi i te Aisne, i reira i noho ai tae noa ki te Tihema 1916 i haere ai ki te rahui tae noa ki te mutunga o Hanuere. Na ka hoki mai ki te trenchlines i te taha o te Aisne, a whawhai i roto i te
Ko te Pakanga Tuarua o Aisne, e kiia ana hoki ko te Pakanga Tuatoru o Champagne. Katahi ka haere te wehenga ki nga raina i Lorraine. I haere ia ki Flanders i Akuhata ka kite i te pakanga i Passchendaele, e mohiotia ana ko te Tuatoru o nga Pakanga o Ypres. Katahi ka hoki mai ki te taha tonga o mua ka haere ki te St. Mihiel salient. I hoki mai te wehenga ki Flanders i te marama o Noema 1917 ka kite i te whakaekenga o te waka rererangi a Allied i te Pakanga o Cambrai, me te whakaeke a Tiamana i muri mai. I te tau 1918, i whawhai te wehenga ki te whakaeke o te puna o Tiamana, i kite i nga mahi i te Pakanga Tuatahi o te Somme (1918), e mohiotia ana ko te Pakanga Tuarua o te Somme (ki te wehewehe i te pakanga o te tau 1916). Ko te mahi nui whakamutunga a te 9th Bavarian Reserve Division i te whakaeke a Tiamana i te waahanga o Montdidier-Noyon i te Pipiri 1918. I whakakorehia te wehenga i muri tata mai. I whakatauhia e te rēhitatanga a te Rōpū Rangatiratanga o te Rōpū Tuarua te wehenga.