Kammala jumla mai zuwa: A watan Nuwambar 1915, Nureddin Bey ya dakatar da Manjo Janar Charles Vere Ferrers Townshend na 6th Poona Infantry Division na British Indian Army a yakin Ctesiphon, sannan ya bi abokan adawar sa zuwa garin Kut. Yawancin hare-haren da aka yi a garin sun kasa, kuma ya zauna a wani
kewaye wanda ya ƙare a cikin Birtaniya mika wuya. Janar Feldmarschall Colmar von der Goltz na Jamus ya isa Bagadaza a ranar 21 ga Disamba, 1915, ya canza sunan Kwamandan a matsayin Sojojin Iraqi ("Irak Ordusu"), ya binciki matsayinsa kuma daga baya ya bar don fara mamaye ƙasar Farisa. A ranar 20 ga Janairu, 1916, Enver Pasha, Ministan War na Ottoman, ya maye gurbin Nureddin Bey da Kanar Halil Bey kuma an nada Nureddin Bey a matsayin kwamandan rundunar IX da kuma kwamandan rikon kwarya na Rundunar Soja ta Uku.