Is any war "legal"?
I'd like to know by what authority the legality of a war is determined.
Wars can be immoral.
When the aggressor is not defending, or when the aggressor greatly over-reacts in defense, the aggressor's behavior can be immoral.
In the case of Iraq, Bush never presented any shred of sufficient justifying evidence that Saddam Hussein was about to receive a clandestine Soviet nuke in Iraq's three-way deal with China and Russia, brokered by the French, or that Iraq was about to obtain-create a true WMD from any other external or internal source.
Nor did Bush ever present any shred of sufficient justifying evidence that Saddam Hussein was supporting Al Qaeda in Iraq.
The lies that Bush had the CIA tell about "here's evidence ... oops, we were wrong" are meaningless in the matter.
Clearly America invaded Iraq to steal Iraq's oil distribution rights so that Saddam wouldn't be able to divert America's share of Iraqi crude to China in that three-way deal once the sanctions against him choosing new trading partners expired, sanctions which were soon to expire ... when America invaded.
Rather than take Saddam out with CIA stealth and technology, America scatter-missiled all of Iraq, slaughtering hundreds of thousands of Iraqis, nearly half of whom were children with a median age of eight years-old.
Without question, America's behavior was grossly immoral.
Whether America's behavior was illegal is unclear to me.
Regardless, America owes a tremendous reparation to the people of Iraq.