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When scouring the net to debate another blogger on another site, I came across this website that has a listing of Time articles both pre and during the Iraq war.
The hypothesis is that the United States is at war with Iraq because Sadaam threatened to only accept Euros instead of Dollars for payment from oil purchasers worldwide. Also, Iran and Venezuela with their regimes were going to follow suit.
So, in order to protect the US currency from being massively dumped and possible devaluation by banks worldwide by every bank who held Dollars, we invaded to install a regime who would promise to continue to support US dollar for oil purchases.
Perhaps I'm behind the curve on this, but I found it interesting nonetheless.
http://www.apfn.org/apfn/iraq_reason.htm