> Putin wants to return to USSR borders, which is a motivation of conquest.
It's kinda funny that you used the term straw man and than immediately created another one
If only there were mountains of journalism and scholarship to back that fact up...
(Also, that's not what a straw man argument is.)
https://www.bbc.com/news/magazine-26769481
https://cepa.org/putin-is-determined-to-rebuild-the-russian-...
https://www.usnews.com/news/world/articles/2016-12-01/vladim...
https://www.inputmag.com/culture/russian-media-essay-celebra...
One major difference is the motivation for the war. Putin wants to return to USSR borders, which is a motivation of conquest. The US did not want to conquer Iraq. It is not the 51st state.
Another is the regime that existed. Ukraine was a peaceful democracy. Iraq was not. Hussein killed many thousands of Iraqis, too.
The invasion of Iraq was a series of war crimes that should never have happened, but Bush was not nearly as authoritarian as Putin and Hussein is not Zelensky.