The Cheap and Easy Option Never Is

I have recently written here regarding the discussion of some hypothetical scenarios regarding U.S. military action against Iran. As appeared to be the case at first glance, and still more at second glance, Iran's size and population, its fragmented geography, its high level of urbanization and the distribution of its urban centers, and the lack of convenient entry points, as well as its relative demographic cohesion, make any attempt at invasion or occupation of the whole country a task difficult in the best of circumstances, and implausible on account of the sheer scale of the force required for it. (Instead of the hundred thousand troops who occupied Iraq, or the two or three hundred thousand who might be available in the event of a full mobilization of the reserves and National Guard, two or three million would be required--figures implausible outside a world war-like draft.)

That reality leaves the air and sea options. It would be relatively easy for the U.S. to neutralize Iran's air force and navy, while its ballistic missile forces appear to be of quite limited practical offensive capacity. At the same time its less conventional anti-ship capabilities, and its anti-air capabilities, if possibly more formidable than those of other recent U.S. opponents (especially if there proves to be some truth to the larger claims made for its indigenous systems), seem unlikely to make a prolonged U.S. air campaign and blockade against the country infeasible (even if they may take a toll heavier than the very light ones of past air campaigns). The U.S. could quite easily cut off Iran's trade, and inflict heavy damage on its armed forces and its economy.

Still, all these years later, there remains no substitute for ground forces in achieving regime changes through military means--while the prospect for blowback is considerable, and not solely through the most obvious sympathizers Iran has. A prolonged campaign of this kind will test the tolerance of the international community broadly, and not least, the patience of neighboring Russia, whose non-intervention cannot be counted on. The result is that the seemingly "easy" air-sea option is not so easy after all. It just about never is.