Reader Amy Quinn over at CurrencyTrading.net brought an article to my attention that suggested twenty ways the war in Iraq has affected the U.S. dollar either positively or negatively.
One point that I want to bring up here is the potential for countries and organizations to switch to the euro. The article mentions that Syria started using the euro in 2006 to avoid funds being frozen in the U.S. Other countries could follow suit, and the result would be an even weaker dollar.
And if you think gasoline prices are bad now, just wait until OPEC decides to use the euro instead of the dollar. This move will further weaken the dollar.
For even more points, please check out the article, which I think provides an objective view on how the war in Iraq (and GWOT) are affecting the dollar.