Iraq War: The impact two decades on

It has been two decades since the ground invasion of Iraq began. British and US forces led the attack which led to the toppling of Saddam Hussain's regime. The instability that followed led to brutal sectarian conflict, and eventually the rise of the Islamic State. The BBC's International Editor Jeremy Bowen has travelled through Iraq and reports on the legacy and consequences of the invasion in 2003. Today's Justin Webb also speaks to Sir Jeremy Greenstock, UK Permanent Representative to the United Nations between 1998 and 2003 and the UK's Special Representative for Iraq. (Image credit: REUTERS/Thaier Al-Sudani)