Originally posted by Unknown Target
Yes, anyway.
The US will not attak Iran. It'd be suicidal, and they know it.
US Military could propably demolish the Iranian army pretty fast and seize their objectives with little difficulties - but nowhere near the Iraq war, Iran is much bigger and by no means level. Also, it is unlikely that US attack - be it airstrikes, small infiltration ops or full-scale invasion - would give Iran opposition the much-needed momentum to start a revolution by their own. Usually people rally against the invading parties.
The problem is not the military campaign itself, but rather what comes after that - that should be pretty clear to everyone by now. Tinfoil "ZOMG DRAFT" aside, US would have pretty ****ing immense problems if they really tried to invade and occupy Iran. Someone in another forum said roughly that by now every ME country knows how to defend against US - just open your arms and let the insurgency do it's work.
OK, why not just steamroll into Teheran, topple the government, retreat and declare "mission accomplished"? Well, even I believe that even though the neocons are apparently utterly ****ty in foreign politics, they have some idea of cause and effect.
Leaving a power vacuum in area like Iran is a Bad Idea. Chances are that after the collapse of government and following US retreat, those with most power (usually loyalists to former government, seeing as they often have the Army on the leash, make their grab for power. Theoretically removing the government COULD be the window of opportunity for the opposition, but realistically speaking it is unlikely. The result would be a nice mix of current Iran, Iraq, Pakistan and Afghanistan mixed - a nice new breeding ground for different fundamentalist forces, much like Iraq is now.
BTW, Iran declared that they could "repel an US attack" (
source), but what that really means is open for debate. Some people think it's barely panic-filled boosting of national ego (THE AMERICAN DOGS ARE COMMITING SUICIDE BY HUNDREDS), some people think it as semiopen threat to use nuclear weapons if needed, some people don't think at all! Intriguing! Needless to say, using even tactical-level nuclear weapons would cause rather grave consequences to your average Iranian, as propable result would most likely be answering on the same scale.