Iran Threatens U.S. With 'Harm and Pain'

The terrain of Iran in addition to the size both in terms of land and population, could make a conventional attack difficult and an occupation impossible when you consider the ethno-cultural makeup of the population, and the current difficulties the U.S. has encountered in occupying Iraq, which would likely reoccur in Iran in much greater magnitude if a theoretical invasion were to take place.

One thing is for sure: Any war with Iran would be unprecedented because of the amount of multinational support needed to pacify a country of this size and the risk of a nuclear fallout against U.S. interests in the region. Furthermore, the full effect that an invasion would have on oil prices would have to be factored into the potential risks of war, although the full scale of that effect is difficult to assess, but under no circumstances will it be positive.

Jam it back in, in the dark.