[jollybean]

Saddam Hussein invaded Kuwait, gassed his own people, and was definitely sitting on piles of WMD's (though not nearly to the extent Bush had us believe).

Afghanis hosted a terrorist group that did 9/11.

So the situations are quite different.

That doesn't necessarily justify invasion of either (but it possibly could) - point being those are not Ukraine analogues.

US invading Canada would probably be a better analogy.