Subsequent to Iraq 's accession to the League of Nations , King Faisal , in pursuit of domestic reform and consolidation , tried to give opposition groups greater voice in the parliament and cabinet . Thus , the National Brotherhood Party was allowed into power . However , its forfeiture of demands concerning the Ango-Iraqi Treaty and callous management of the Assyrian Affair lost it credence with other reformist groups — particularly many from the National Party . In 1932 Iraq gained its independence from Great Britain and about a year later King Faisal died and was replaced by his son Ghazi . Al-Hashimi 's party lost power with Ghazi 's accession , and owing to the failure of traditional methods . In succession , he appointed Rashid Ali al-Gaylani , al-Midfai and al-Aiyubi as prime ministers between 1933 and 1935 . During al-Aiyubi 's premiership , he successfully lobbied King Ghazi to dismiss parliament and he then rigged the parliamentary elections and significantly reduced the National Brotherhood Party 's representation . In January 1935 , a series of Shia tribal uprisings against the government began . Part of the tribesmen 's demands were that al-Aiyubi resign , which he did when Hikmat Sulayman of the National Brotherhood instructed his ally , General Bakr Sidqi , to withhold military action against the tribesmen . Afterward , al-Hashimi lent his support to the Shia tribal rebellion in Diwaniya against al-Aiyubi 's successor , al-Midfai . Al-Hashimi instructed his brother and the army chief of staff , Taha , to not suppress the revolts
Assyrian Affair
Simele massacre
Yasin al-Hashimi