There is another argument that amuses me: "This war is illegal because it is not backed by the UN". It is implicitly backed by 1441 resolution, though not explicitly.

For me it is clear how the UN is unable to manage the international frame following the fall of the URSS, and in particular this conflict. It has no sense for me that a global institution like UN yet has first and second class countries, ones with a permanent representation and veto right, and the rest with a temporal representation and without veto.

In this conflict these characteristics of UN have played against a clear global resolution in the fight against terrorism, and those countries, like Iraq, that use and stock irresponsibly mass destruction weapons. Therefore, I don't consider a UN resolution necessary to make this war.

Fernando