In this Sunday, April 12, 2015 photo, Ismail Khan, long dominant figure in Afghanistans western province of Herat, waits ahead of an interview with The Associated Press in Herat city, west of capital Kabul. Afghanistan could face a war with the Islamic State group if the government does not resolve internal differences and improve the security situation, one of the countrys most powerful warlords warned in an interview with the AP. (AP Photo/Massoud Hossaini)
