There is a much simpler explanation for this aspect. Not being able to get a UN security council resolution because of use of the veto.Critics of Blair argue that he misled the public and Parliament by overstating the threat posed by Iraq, making the war illegal under international law. The invasion lacked explicit authorization from the United Nations Security Council, which is why many believe Blair’s actions may constitute a war crime, particularly in relation to the violation of the UN Charter and principles governing the use of force.