Let us try to get real for a second. The US is not going to be bullied by any Iranian threats. A carrier task force will once again return to the Gulf areas, as has been the policy of the US government for quite some time and this is nothing new or especially provocative on its part. What the Iranian’s then do about it is your guess is as good as mine. But they have put their reputation at risk, not the US.True, however, if Iran closes the Arabian Gulf / Strait of Hormuz, then a whole bunch of support will swing into the U.S. favor and missiles will be flying in short order. The World will not tolerate the blocking of more than 20% of the worlds oil export for long.
I believe the U.S. has learned a lesson from Iraq and Afghanistan, and that is to leave the rebuilding of the Islamic nation to the Islams. The largest portion of American and allied casualties came from the rebuilding of Iraq and Afghanistan. I don't believe we will be doing that for Iran. Not sure where this guerrilla war would be fought, but it won't be in Iran, unless its a civil war started after the bombing ended.
Again, the U.S. would not try to keep troops in Iran. We would most likely destroy Iran's ability to manufacture nuclear materials, bomb the military and civil infrastructure, and then simply leave the rest to whoever inherits the mess.
That depends on the type of war you are waging. I expect this would be similar to the actions in Bosnia and Yugoslavia. Military units, bases, communications centers, infrastructure, weapon and nuclear manufacturing sites would be targeted by bombs and missiles. The risk is of losing aircraft and maybe a frigate or two. I doubt Iran would be able to do more than attack a few oil tankers with mines and RPG armed Boston whalers. I sincerely doubt the U.S. would park a carrier in the Straight where a mere 50 miles separates one coast form the other. Why would they when their power projection reaches hundreds of miles?
The one risk I will agree on is an Iranian invasion of Iraq and Afghanistan. With U.S. forces now mostly gone form Iraq, I am not sure what Arab feelings would be about that. Iranian troops in Afghanistan would be harder to dislodge, but feel Iranian casualties would be high. Taliban forces are fighting well simply because they attack in small groups and can withdraw to Pakistan when they need to. An "invasion" would be much harder to conceal from U.S. recon assets and there would be no stipulation on crossing into Iran to hit targets. Since the Taliban and Iran nearly went to war in 1998 (?) I am not sure how much support Iranian forces would get from the insurgents already fighting there, and the ANA would certainly resist (possibly along with India). Again, I don't see Iran coming out on top of that conflict.
Again, there would be no cleanup.
It is good to see an opposing comment. I feel too much is being placed on America's economic problems. While they are large, I don't see it deterring a military option (it hasn't in the past). What it will deter is an economic assisted recovery after the fighting, and probably a more detailed effort at garnering support from the U.N. prior to conflict than would normally be the case.
If the Iranian’s attack the US fleet as they claimed they are willing and capable of doing, with the stated intention closing down the straight I think we can all agree the response will be far greater than anything we have seen before.
Two questions, first can the republican guard successfully deny the US Navy access to the gulf by force? And if they can, can they cult off gulf traffic?
I think the answer to both is no, even if they can get a couple of blow of their own in.
Then the question is what is next?
Unless there is a change of policy then the game is how do you insure the safe passage of the commerce in the gulf while the Iranians try to droop mines in the waters of the straight, launch repeated small boat attacks, and possibly do commando raids on oil terminals and the like along with all the sabotage their many agents in the gulf can accomplish.
My humble proposal was and I think still is that taking of the island is the best option for many reasons but it is not the only one.
What we can all agree on is that the entire world will not put up with the energy disruption that Iran claims they can produce. Something would be done and as long as the oil flows the way it always has the world will indorse it, privately if not publicly.