"There are way more terrorists in Pakistan, in Sudan, in Yemen. Why Iraq first?"
From a stratigic stand point - I would say because once Iraq is "occupied" it would be very easy to control the entire middle east.
With troops in Afghanastan and Iraq - Iran - part 2 of the "Axis of Evil" is flanked on both sides - would make is rather easy to walk over them as well.
Pakistan - even though they are a nuclear power has their hand full worrying about a billion people in India that would like to remove them as a country.
Saudi Arabia - will fall right into line once Iraq is under US control (and here is where the oil part comes in) because with what is in Iraq the US could turn off the Saudis Cash cow.
This will not end with Iraq - it is the start of a play to control the middle east
