There have been many waves of refugees and emigrants from Iraq since the late 1970s until the present. Major events the modern history of Iraq resulted in the flight of what are now millions of Iraqis: more than three decades of repression and occasional violent attacks and massacres against the Kurdish population in the north and the Shi'a in the south perpetrated by Saddam Hussein's regime, the Iran–Iraq War of 1980–1988, the 1991 Gulf War, the economic sanctions that lasted from 1991 until the toppling of Saddam Hussein, and the 2003 US-led invasion of Iraq.[1]