The 2003 invasion of Iraq was sanctioned largely because of claims the country had weapons of mass destruction.
The source of some of the alleged intelligence behind the claims was an Iraqi defector living in Germany, someone who has now admitted the evidence he submitted was false.
Al Jazeera's Barnaby Phillips reports.
See also
Mike Hitchen Golden Oldies Come take a walk with me
Mike Hitchen Unleashed -Turn the page? Let history be the voice of your dead