Developments in Iraq

Iraqi Shiite militia fighters celebrate the defeat of Islamic State militants in Amerli, Iraq, Sept. 2, 2014.

An Iraqi Shiite militia fighter flashes the victory sign, near the wreckage of a tank belonging to Islamic State militants, after breaking a long siege of Amerli by Islamic State militants, Sept. 2, 2014.

Triumphant Iraqi Shiite militia fighters celebrate breaking a long siege of Amerli by Islamic State militants, Sept. 2, 2014.

Police inspect the site of an attack that killed at least 18 people and wounded about 50 people when two parked car bombs went off in two mainly Shi'ite districts, in Baghdad's Al-Amil district, Sept. 2, 2014.

Iraqi Shiite militia fighters hold the Islamic State flag as they celebrate after breaking the siege of Amerli by Islamic State militants, Sept. 1, 2014.