 Nzvimbo yeIraq yaive pasi pehutongi hweOttoman kusvika pakupera kweHondo Yenyika Yekutanga, ichiva nzvimbo yakatorwa pasi peuto reBritain kubva muna 1918. Kuitira kushandura dunhu kuita hutongi hwevanhu, Mandatory Mesopotamia yakakurudzirwa seClass A League of Nations pasi peChinyorwa 22 uye yakatendwa kuUnited Kingdom yeGreat Britain neIreland, apo nzvimbo dzekare dzeHumambo hweOttoman dzakakamurwa muna Nyamavhuvhu 1920 neChibvumirano cheSèvres. Zvisinei, kupandukira kweIraq kwa1920 kwakaguma nokugumiswa kwechirongwa chokutanga chokutonga. Panzvimbo pezvo, Humambo hweIraq hwakazivikanwa senyika yakazvimiririra pasi paMambo Faisal I weIraq. Pasinei nehurumende yepamutemo yamambo weIraq, chibvumirano chemubatanidzwa chakaitwa pakati peHumambo hweIraq neUnited Kingdom muna 1922 chinonzi Anglo-Iraqi Chibvumirano. Yakapa United Kingdom basa mukutonga nehutongi hweIraq. Mambo Faisal akanga amboparidzwa Mambo weSyria neSyria National Congress muDhamasiko muna March 1920 asi akadzingwanavaFrench muna July wegore rimwe chetero. RAF yeBritain yakachengeta kudzora kwechiuto kwakati. Nenzira iyi, Iraq yakaramba iri pasi pokutonga kweBritain chaiko kusvikira muna 1932. 