To provide some context for the drama series 10 Days to War, we look back at some of Newsnight's coverage of the run up to the start of the Iraq war.
With correspondents on the ground in the region, experts providing political and diplomatic analysis from London, and key interviews with those involved in the negotiations - Newsnight offered in-depth coverage in the run up to war.
Below is some of the best from Newsnight during those dramatic days back in 2003.
10 March: 10 Days to War
Mark Urban reported on the potential damage being done to the UN's authority as US and UK calls for a second resolution on military action against Iraq cause rancour and division.
11 March: 9 Days to War
Political Editor Martha Kearney reported from Westminster on the potential political damage to Tony Blair of not getting UN backing for action against Iraq.
12 March: 8 Days to War
As a UN agreement looked increasingly unlikely, Newsnight's Iain Watson reported on the legal issues of going to war without full international backing of the United Nations.
13 March: 7 Days to War
The then Chancellor of the Exchequer Gordon Brown spoke to Political Editor Martha Kearney, defending Tony Blair's position on taking military action against Saddam's regime.
THE FRENCH POSITION
14 March: 6 days to War
Kirsty Wark spoke to French Foreign Minister Dominic de Villepin about his country's stance on a second resolution following President Chirac's remarks that there will be no agreement.
17 March: 3 Days to War
House of Commons leader Robin Cook resigned from Tony Blair's cabinet as the build-up to war with Iraq gathered pace. He delivered a devastating critique of the government's justification of military action.
18 March: 2 Days to War
After the diplomacy and the protests came the political vote. Martha Kearney reported on the day when Tony Blair won House of Commons backing for war despite the biggest rebellion recorded against a government and the loss of three ministers.
19 March: 1 Day to War
With undercover footage obtained from inside Kirkuk, Robin Denselow reported on Saddam Hussein's war preparations, including blowing up the region's lucrative oil wells.