Rubuta ci gaba don wannan sakin layi - A lokacin Yaƙin Duniya na I, Ottomans sun goyi bayan Jamus da Ƙasar Tsakiya. A cikin yakin Mesopotamian da aka yi wa Tsakiyar Tsakiya, sojojin Burtaniya sun mamaye kasar kuma da farko sun sha wahala sosai a hannun sojojin Turkiyya a lokacin Siege of Kut
(1915 zuwa 1916) Koyaya, bayan wannan Birtaniyya ta fara samun rinjaye, kuma an ƙara taimaka musu da goyon bayan Larabawa da Assuriyawa na gida. A shekara ta 1916, Burtaniya da Faransa sun tsara shirin raba yankin Yammacin Asiya bayan yakin karkashin yarjejeniyar Sykes-Picot. Sojojin Burtaniya sun sake haɗuwa kuma sun kama Bagadaza a 1917, kuma sun ci Ottoman. An sanya hannu kan yarjejeniyar tsagaita wuta a shekara ta 1918. Birtaniya ta rasa sojoji 92,000 a yakin Mesopotamiya. Ba a san asarar Ottoman ba amma 'yan Burtaniya sun kama jimillar fursunonin yaƙi 45,000. A ƙarshen 1918, Birtaniya ta tura mutane 410,000 a yankin, wanda 112,000 daga cikinsu sojoji ne.