The document provides a historical overview of Iraq, including its origins in ancient Mesopotamia and periods of rule under various empires. It discusses Iraq's establishment as a monarchy in 1921 and as a republic in 1958, followed by rule under Saddam Hussein's Ba'ath party from 1968-2003. Major events covered include the Iran-Iraq War, the Gulf War, the US-led invasion in 2003, and the subsequent insurgency and civil war. The document also summarizes key policies and outcomes of the Iraq War under US Presidents Bush and Obama.