Tony Blair is now Sir Tony.

[AngleEyes]

The invasion of Iraq was neither in self-defense against armed attack nor sanctioned by UN Security Council resolution authorizing the use of force by member states and thus constituted the crime of war of aggression, according to the International Commission of Jurists (ICJ) in Geneva.

OK, a link to your source would have been appreciated:

https://en.wikipedia.org/wiki/Legality_of_the_Iraq_War
​

But that would mean the UK and USA were waging a war of aggression, which I would not disagree with.
But that doesn't mean that any one person representing each aggressive nation was responsible. As I pointed out earlier, in US and UK it was a democratic decision.
Also, the war was illegal in people's opinion. It has never been judged that UK nor US were acting illegally, in any court.

 

[AngleEyes]

weapons of mass destruction. WOM's

WMDs not WOMs.