After the fall of Mosul, the Islamic State of Iraq and the Levant demanded that Assyrian Christians living in the city convert to Islam, pay tribute, or face execution, by 19 July 2014. Al-Baghdadi further noted that Christians who do not agree to follow those terms must "leave the borders of the Islamic Caliphate" within a specified deadline. This resulted in a complete Assyrian Christian exodus from Mosul, marking the end of 1,600 years of continuous Christian presence.