They include family members of soldiers who were killed in action during the war, and citizens who blame former British Prime Minister Tony Blair for his role during the war.
"There is no question that that ill-fated intervention by Blair and Bush precipitated some of the chaos we see in the region today".
Former British prime minister Tony Blair's decision to commit British forces to the 2003 USA invasion of Iraq was hasty and ill-reviewed, and undermined the authority of the United Nations Security Council, said a report released on Wednesday after a seven-year inquiry into Mr. Blair's role in the invasion.
He said he felt "deeply and sincerely. the grief and suffering of those who lost ones they loved in Iraq". He argued that he had acted in good faith, based on intelligence at the time which said that Iraq's president had weapons of mass destruction.
Mr Howard said while he was sorry for those who had suffered as a result of the conflict in Iraq, he was justified in making the decisions he did in 2003 because they were informed by the best intelligence available at the time. The committee concluded in their report Blair did not adequately plan for the conflict and its aftermath, did not consult with his cabinet appropriately, did not exhaust peaceful options and should not have been as certain as he was that Iraq possessed weapons of mass destruction.
"It was not the twin towers in London that had been attacked and he does not have to engage in the same instability as had beset the American administration", Salmond said in an interview with RT's Going Underground praising Chilcot's "powerful" report. "Military action at that time was not a last resort", the former senior civil servant told reporters.
He expressed sorrow for the death of thousands of people, adding, however, that "the world was and is in my judgment a better place without Saddam Hussein".
If Hussein had been in power during the Arab Spring in 2011, Blair said, "I believe he would have tried to keep power" in the way that Syria's President Assad has done.
Mr. Blair insisted on Wednesday: "I did not mislead this country".
Former prime minister Tony Blair is back in the headlines, and not in a good way, following yesterday's publication of the Chilcot Report into the Iraq war - seven years in gestation.
In a 2002 private memo between the two leaders declassified on Wednesday along the Chilcot report, Blair wrote to the United States president: "I will be with you, whatever".
'In the years that have gone by there's been this constant claim that we went to war based on a lie, ' Mr Howard said in Sydney on Thursday.
"What I can not do and will not do", Mr. Blair said, 13 years after he first ordered British troops into action in Iraq, "is say we took the wrong decision".