How tough will an Iraq war be? Here's how the Daily Kos sees it -- if he's right, this will not be a cakewalk. Readers' comments are also worth your attention; a few of the better comments are in a follow-up.

Kos says, "I've never been a pacifist -- I am an Army vet with strong respect for our military and a great interest in military history and tactics. But there is such a thing as a "just war", a "necessary war", and this ain't it. Not by a long shot."