, ▁the ▁ 1 9 2 0 ▁Ira qi ▁revol t ▁resulted ▁in ▁the ▁scra pping ▁of ▁the ▁original ▁mand ate ▁plan ▁in ▁favour ▁of ▁a ▁formally ▁so ver eign ▁Ira qi ▁kingdom ▁but ▁one ▁under ▁effective ▁British ▁administration . ▁The ▁plan ▁was ▁formally ▁established ▁by ▁the ▁Ang lo - I ra qi ▁Tre aty . ▁▁ ▁The ▁role ▁of ▁the ▁United ▁Kingdom ▁in ▁the ▁formal ▁administration ▁of ▁the ▁Kingdom ▁of ▁Ira q ▁was ▁ended ▁in ▁ 1 9 3 2 , ▁following ▁the ▁Ang lo - I ra qi ▁Tre aty ▁( 1 9 3 0 ). ▁The ▁independent ▁Ira qi ▁Kingdom ▁under ▁the ▁Hash em ite ▁r ul ers ▁under w ent ▁a ▁period ▁of ▁tur bul ence ▁through ▁its ▁entire ▁existence . ▁Est ab lish ment ▁of ▁Sun ni ▁religious ▁dom ination ▁in ▁Ira q ▁was ▁followed ▁by ▁Ass y rian , ▁Y az idi ▁and ▁Sh i ' a ▁un rest s , ▁which ▁were ▁all ▁brut ally ▁suppress ed . ▁In ▁ 1 9 3 6 , ▁the ▁first ▁military ▁coup ▁took ▁place ▁in ▁the ▁Hash em ite ▁Kingdom ▁of ▁Ira q , ▁as ▁Bak r ▁Sid qi ▁succeeded ▁in ▁replacing ▁the ▁acting ▁Prime ▁Minister ▁with ▁his ▁associate . ▁Multiple ▁cou ps ▁followed ▁in ▁a ▁period ▁of ▁political ▁inst ability , ▁pe aking ▁in ▁ 1 9 4 1 . ▁ ▁During ▁World ▁War ▁II , ▁the ▁Ira qi ▁government ▁of ▁Reg ent ▁' Ab d ▁al - I lah ▁was ▁over th rown ▁in ▁ 1 9