The series chronologically covers the 2003 invasion of Iraq by a United States-led coalition that overthrew the government of Saddam Hussein, and its subsequent occupation of Iraq (2003-2011); the first phase of the Iraqi insurgency (2003-2006); the Iraqi Civil War (2006-2008); the post-US withdrawal insurgency (2011-2013); and the War in Iraq (2013-2017), an armed conflict between the Iraqi Army and its allies against the Islamic State of Iraq and the Levant.