1) Weapons manufactories make billions of dollars in contracts paid for by the tax payer.
2) Oil companies also making hundreds of billions by getting access to the oil.
3) Contractors get billions of dollars paid for by the tax payer to rebuild Iraq
4) Consumers get to live a stable life cause they can't live without the oil.
5) In the end, war is good for the economy. Look what WW1/2 did for the US economy
