The Halabja poison gas attack occurred in the period of March 16 17, 1988, during the closing days of the Iran-Iraq War, when chemical weapons were used by the Iraqi government forces in the Kurdish town of Halabja in Iraqi Kurdistan. The attack instantly killed thousands of people (3,200-5,000 dead instantly) and injured 7,000-10,000, most of them civilians; thousands more died of complications, diseases, and birth defects in the years after the attack. The incident, which some define as an act of genocide, was as of 2010 the largest-scale chemical weapons attack directed against a civilian-populated area in history.