united-states.jpgUnited States forces have held a formal ceremony to lower the American flag in Iraq, ahead of their withdrawal from the country, nearly nine years after the controversial invasion to topple Saddam Hussein.

The ceremony marking the closure of the Pentagon’s  headquarters near Baghdad, comes after President Barack Obama hailed the extraordinary achievement  of the war in a speech to welcome home some of the troops.

More than one million Iraqis and nearly 4 500 American soldiers, were killed and nearly two million Iraqis displaced, after the 2003 US-led invasion of Iraq.