Shia–Sunni relations
Shia–Sunni discord in Iraq starts with disagreement over the relative population of the two groups. According to most sources, including the CIA's "World Factbook", the majority of Iraqis are Shia Arab Muslims (60%-70%), and Sunni Arab Muslims represent between 32% and 37% of the population. However, Sunni are split ethnically among Arabs, Kurds and Turkmen. Many Sunnis hotly dispute their minority status, including ex-Iraqi Ambassador Faruq Ziada, and many believe Shia majority is "a myth spread by America". One Sunni belief shared by Jordan's King Abdullah as well as his then Defense Minister Shaalan is that Shia numbers in Iraq were inflated by Iranian Shias crossing the border. Shia scholar Vali Nasr believes the election turnout in summer and December 2005 confirmed a strong Shia majority in Iraq.
Iraq
During 2013, Sunni militant groups stepped up attacks targeting the Iraq's Shia population in an attempt to undermine confidence in the Nouri al-Maliki-led government. In 2014, Sunni insurgents belonging to the Islamic State of Iraq and the Levant (ISIL) terrorist group seized control of large swathes of land including several major Iraqi cities, like Tikrit, Fallujah and Mosul creating hundreds of thousands of internally displaced persons amid reports of atrocities by ISIL fighters.