Why are they keep on pushing the non-existing nuke in Iran story and why are they constantly pushing for a nuke-first scenario. The official reasons do not make sense and the bunker buster story is a piece a crap as well. A much more important reason is that you cannot occupy a country unless you manage to capture the capital.
Baghdad was still reasonably simple however that mega city is still in chaos and a large amount of soldiers are trapped behind a wall in the center of the city which is constantly being shelled by "insurgences." If 100,000 soldiers can't control Baghdad, what about Tehran?
Tehran will be far more difficult. Not only is Tehran is a city of 7 million people like Baghdad, it is far better defended with much more sophisticated weapons, an underground metro system, 280 km of highways with a further 120 km under construction and two major airports, it has a far more difficult obstacle. The name Tehran means "bottom of the mountain" and the north side of the city is totally surrounded by the Alborz mountain range.
In short Tehran is impossible to conquer unless ... the city is nuked from the face of the earth thus instantly killing a million or so and have the other 5 million on the run thus enabling the bombers and tanks to take the city.
Wolfy is of course very important in this planned crime against humanity...