Across the Atlantic, the findings of the Iraq Inquiry have been poured over by those involved in the planning of the war and its execution. In a statement President Bush said he still believes the world is a better place without Saddam Hussein.
The man Mr Bush chose to run Iraq hit back at criticism in the Chilcot report that Iraq's army should not have been disbanded. Paul Bremer told ITV News he stands by his decision.
Washington Correspondent Robert Moore reports on America's response:
Paul Bremer headed up the transitional government of Iraq following the 2003 invasion, and has challenged some of Chilcot's findings.Read the full story ›
Colin Powell’s former chief of staff has said America would have gone to war with Iraq regardless of Britain's help.Read the full story ›
Tony Blair faced the media for two and a half hours today, to give his reaction to the Chilcot inquiry into the Iraq War.
He made a lengthy and impassioned justification for taking Britain to war in 2003 - but he did also apologise.
ITV News' international affairs editor Rageh Omaar takes a look at the former prime minister's defence.
The former foreign secretary has apologised for the loss of life in Iraq but refused to say sorry for the decision to go to war in Iraq.Read the full story ›
Many of the families of British service personnel who died in the Iraq War are still angry with Tony Blair, with one family member branding the former prime minister the "world's worst terrorist".
As ITV News' correspondent Martin Geissler reports, at last, with the publication of the Chilcot Report, they feel the truth is on their side.
The Chilcot Inquiry into the Iraq War found today that the British military were sent to Iraq with inadequate preparation and resources.
The lack of proper planning led to fatal mistakes, and in total, 179 British personnel lost their lives during the conflict.
ITV News Political Correspondent Carl Dinnen reports:
Tony Blair has said he would go to war in Iraq again - if faced with the same information he had 13 years ago.
The former prime minister answered questions from press after giving a statement following the publication of the Chilcot report.
ITV News Political Editor Robert Peston reports:
The former international development secretary Clare Short has said she is "ashamed" of the Iraq War and "we cannot undo the harm we have done".
Mrs Short, who served in Blair's government, said: "The suffering of the people in Iraq is unbearable, the destabilising of the region, the birth of ISIS, it makes me very upset, very ashamed, I think most people in Britain feel ashamed and full of regret, we cannot undo the harm we have done but at least the country needs to learn about how badly those decisions were made and make sure we never do it again."
There was no imminent threat in Iraq and the possibility for a diplomatic solution was cut short, the former international development secretary Clare Short said.
Short, who served in the Blair government in the run-up to the Iraq War, told ITV News: "The suspicion there might be some WMD had been there for years and years. There was no imminent threat, there was no immediate danger, this was a long term issue.
"The only reason for the date of the invasion is America decided on that date and what Chilcot says absolutely clearly is the possibility for a diplomatic solution was cut short."
She added that at the time "Blair wasn't being straight with us or indeed with the country and I think everybody knows that."