"Attack and assault aircraft provided aerial weapons support for the operation and also delivered troops from the Iraqi army's 4th Division; the "Rakkasans" from 1st and 3rd Battalions, 187th Infantry Regiment, of the U.S. Army; and the "Hunters" from 2nd Squadron, 9th Cavalry Regiment, U.S. Army, to "multiple objectives" according to a Multinational Force Iraq statement. Forces from Iraq's 2nd Commando Brigade then completed a ground infiltration to secure numerous structures in the area, officials said. "
1-87 Infantry Regiment. That's 10th Mountain Div.