See: https://www.nytimes.com/2017/06/17/world/asia/marawi-philippines-islamic-state-christians.html?utm_source=Pew+Research+Center&utm_campaign=12dc14dbb6-EMAIL_CAMPAIGN_2017_06_19&utm_medium=email&utm_term=0_3e953b9b70-12dc14dbb6-400098233
The Great Dialogue