1:32 EST Coalition forces have called in air strikes on a reported 1,000-vehicle column -- believed to be of Republican Guard forces -- heading south from Al Hillah. The exact size and composition of the unit is unclear, as sandstorms continue to hamper reconnaissance efforts. The Iraqi column moved quickly from Baghdad overnight, reportedly traveling at 30 to 60 kilometers per hour, and struck Bonecrusher and Charlie Companies of the 3rd Battalion, 7th Armored Cavalry Regiment east of An Najaf. A B-1 bomber reportedly delivered coalition air strikes overnight near An Najaf. U.S. attack helicopters have not been in the air for two days due to sandstorms, though tactical aircraft are reportedly in the air and ready to strike Iraqi forces. The Iraqi force has reportedly been attempting to outflank the two lead cavalry companies and strike Apache Company to retake the bridge the 3-7 Cavalry used to cross the Euphrates.