You are completely unable to strike back at the US naval assets pounding your country, or the planes dropping the bombs on you.
Just as an aside, here is a [likely highly biased, yet still interesting] article regarding Iranian ambitions with respect to the Russian Sunburn supersonic anti-ship missile. I have no idea if the info presented is reasonably legitimate or not; it was just something I had stumbled onto long ago and found somewhat interesting, and I thought you might find some of it interesting as well.
Even if we disregard some of the more outrageous claims of the article, I think a case could still be made for the Iranians making an effort to 'claim' parts of the Persian Gulf by controlling the Straits of Hormuz via anti-ship missiles launched from mobile missile launchers. I suppose that would fall apart if/once the ground occupation reached those areas though.
Anyway; I just wanted to throw that in, in case anyone was interested. There seem to be some very solid ideas here already. If anything, I would just try to replicate the Iraqi insurgency idea of just not losing, rather than attempting to somehow win stand-up battles. You don't have to fight a conventional war with a superior army if you are willing to let them enter your turf before stepping up your resistance. Guerrilla tactics could prove superior to committing large amounts of resources in one place against an enemy who can outproduce you.
Oh yeah, and kudos on the interesting conversational query!
