Iraq cannot be a Vietnam. 1. They have like 1/6 the the population of vietnam. 2. There are no superpowers feeding them supplies. China and Russia aren't going to supply them. 3. There are no jungles to hide in. 4. We won't be jerked around by a corrupt puppet government ally 5. This is a straight up military army to army fight, not geurilla warfare. 6. No draft. A pure professional army means the morale is mush better. 7. The populace in the US is rather hawkish and isn't protesting like the 60s. 8. US tech was an overwhelming success 11 years ago. US tech has improved during that time, Iraq tech has not. 9. Iraq military morale is very low. Its a conscript army. They didn't believe in the fight and they didn't believe that they could survive the combined discipline assault. They don't have as many tanks or artillery anymore... certainly no planes. 10. Iraq is 1/3 the size of Vietnam.
All Iraq can hope for is that the other muslim nations will dive in and help. It didn't happen last time. Iran tech is almost WW2 quality with no training or coordination. It would be like fighting the North Koreans in '51. Kuwait hates them. Saudi Arabia has only 5 million people and has no love for Iraq. Turkey is large and relatively powerful... but also the most western and quite rational. Pakistan is unorganized rabble wherin 80% of their effort goes towards india. Syria is nutso and has a decent military... but theyve been stung too many times. They know that they cant feed their populace for very long when the going gets rough. Their industrial capacity is almost nil.
I think they all understand that once hostilities start that our airforce will be moving around with utter impunity. They haven't designed impregnable power grids or fuel reserves. Within the first week 80 % of the populations will be in utter darkness and no trucks will roll. The governments mat talk tough... just remember that they keep the populace in the dark for the most part. All they want is food, water, and sleep.. very hard to get in wartime.