Iraq took control of the last American military base in the country , after US forces marked the end of their mission, bringing a divisive war to a low-key conclusion.
The transfer of the sprawling installation on the outskirts of the southern city of Nasiriyah is a final step ahead of a complete US withdrawal from Iraq in the coming days.
The Imam Ali Base, known to the US military as Camp Adder, housed 15,000 American troops at its peak and was officially signed over at a ceremony attended by US Colonel Richard Kaiser and Hussein al-Assadi, the Iraqi in charge of base transfers.
The base, which will now be used by Iraq's fledgling air force, lies on the edge of the ancient city of Ur, the Biblical birthplace of Abraham.
It brings to a close nearly nine years of US military involvement in Iraq that began with a "shock and awe" campaign in 2003 to oust Saddam Hussein