The war in Iraq was quick and decisive. The occupation afterwards was a mess in every way possible, but the organized war between states went exactly as planned.
Absolutely, and so different from Ukraine, where I think pundits expected an Iraq-like situation. Initial rapid capture followed by years of instability. American advisors at the beginning looked like they were interested in mainly supplying Ukraine with guerilla warfare tools, etc. expecting that kind of situation.
... but reality went another way and now the west is sending in cruise missiles tanks and cluster artillery.