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Coalition forces are knocking on the gates of Baghdad with U.S. Special Operations forces already operating inside the Iraqi capital and coalition troops are moving to within the outskirts of the city.

Lead units of the multi-pronged U.S. assault force were approaching from two directions: Army troops were closing in from the southwest after crossing the Euphrates River, and Marine units were advancing from the southeast in a long column along the Tigris River.

"We are getting closer and closer," said Navy Capt. Frank Thorp, a Central Command spokesman. "We will be in Baghdad within a matter of hours from when we decide to go."

This is a fast moving story and you can count on On the Record with Greta Van Susteren and FOX News to bring you all the latest developments from the battlefield. Additionally, we'll get complete analysis of the war from our military experts.

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--The Associated Press contributed to this report.

--All topics and guests are subject to change.

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