Pedzisa mutsara unotevera: Pashure pokutanga kweHondo Yenyika I akatungamirira boka rake kupinda munharaunda yeLoraine paWestern Front. Musi wa9 Gumiguru 1914, akava mutungamiri weI. Army Corps muLithuania, uko mauto ake akarwisana nemauto eRussia. Pashure pokutanga kukundikana kwemaitiro, Kosch nevarume vake pakupedzisira vakakunda Hondo Yechipiri yeMasurian Lakes. Nokuda kworukundo urwu Kosch akapiwa mubayiro wePour le Mérite. Musi wa11 Chikumi 1915 akagadzwa Commanding General weX. Reserve Corps. Akavatungamirira muhondo paDniester,
Hondo yeGnila Lipa neKrasnostaw. Akachinjirwa kuBalkan Theater, kwaakarwa neSerbia. Nokuda kwokubudirira kwake Kosch akagamuchira, musi wa 27 November 1915, Oak Leaves kuPour le Mérite yake.