They were put there by members of the ministry's elite commando unit called the Wolf Brigade.

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Colonel Ricky Gibbs, whose brigade patrols the area, has not been able to get rid of the entire Wolf Brigade, try as he might.

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Dubbed Operation Thunder Blitz, it involved U.S. soldiers from the 3rd Squadron, 3rd Armored Cavalry Regiment, and Iraqi forces from the 1st Battalion, 2nd Commando Brigade (Wolf Battalion), the military said.

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