In the legal sense punching a child molester in the face is the same as punching a kind, honest and innocent person in the face, I guess... :smile:
The issues with the 2003 invasion of Irak were:
1) It was done against the UN and therefore against international law
2) It was based on nothing but lies
As for point number 2), if its ok for the US to claim, that Irak must be invaded in a "preemptive strike", because the country has weapons of mass destruction, then its also ok for Russia to claim, that Ukraine must be invaded, because it is run by "neo-nazis". Maybe Bush did actually believe, that Irak had weapons of mass destruction, but thats still not a valid reason to invade, because having weapons is not the same as planning to use them against someone.
And when we dig just a little bit deeper, that real motive for invading Irak in 2003 was an attempt to turn the country and in the long run the entire Middle East into a democracy after western ideals. This was not so much the idea of Bush himself but more the people around him. But even so that was the real reason, and in the eyes of international law installing democracy is no more legitimate than preventing it. Not everyone agree, that democracy is the best system. Putin for instance dont think so, and neither do the chinese.
Its also important to note, that Irak was governed by the Baat party, which is some sort of communist ideology, and the country was an allied of Russia. So the invasion of Irak was also an aggressive act against Russia. Putin served his first term in 2003, and experiencing this total disrespect for Russia and its valid arguments might have played a large role in convincing him, that the West was still enemies of Russia, and that in the long run war was the only solution.
Syria is also run by the Baat party and is another ally of Russia. When civil war broke out in Syria in 2011, the west supported some rebel groups. But Putin was having none of it. He had seen, how the socalled "liberation" of Irak had done nothing but open the door for islamic fundamentalists. So he send russian soldiers to Syria to keep Assad in power. So in a sense there is a direct line from the invasion of Irak in 2003 to the invasion of Ukraine in 2022. And while one does not justify the other, its quite possible, we would not be, where we are today, if US leaders had not been so incredibly arrogant and stupid 19 years ago.