Perspectives from 2003
Colin Powell, US Secretary of State
Mr Powell made a controversial presentation to the UN security council, alleging that the US had proof of the Weapons of Mass Destruction:
An overview of Mr Powell's presentation to the UN: https://en.wikipedia.org/wiki/United_Nations_Security_Council_and_the_Iraq_War#Colin_Powell.27s_presentation
Full Text: https://www.theguardian.com/world/2003/feb/05/iraq.usa
George W Bush
George W Bush speaks to the US nation announcing the beginning of the War:
One of the War's most outspoken critics was documentary-maker Michael Moore, who used his Oscar Acceptance speech in 2003 to attack the war:
A more detailed explanation of Mr Moore's perspective can be found in his full length documentary Fahrenheit 9/11.
Another outspoken critic was 2016 presidential hopeful Bernie Sanders:
Later Perspectives:
Tony Blair
The British PM at the time of the Invasion, Mr Blair was heavily criticised for his unwavering support of his US allies. Britain was one of the few countries to join Mr Bush's 'Coalition of the Willing' in military support for the US invasion.
In 2016, the release of the Chilcot Report justified much of the criticism of Tony Blair and the invasion as a whole. Here is his response: