The U.S.-led invasion of Iraq started in the Spring of 2003. As of this writing some 13,000 American fighters are in the country, down from a one-time high of 170,000. The deadline for all of those troops to withdraw from Iraq is a little more than a month away, on December 31st. Convoys of soldiers have already started to ship out. But as Michael Holmes explains, the pullout has been a long and complicated process.
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