Las Vegas native Lt. Col. Christopher Walach, right, commander of 1st "Attack" Battalion, 227th Aviation Regiment, 1st Air Cavalry Brigade, 1st Cavalry Division, stands in front of his formation during the color casing ceremony at Camp Taji, Iraq, Dec. 4. The casing of their colors symbolizes an end of operations although they still have the task of redeploying back to the states, said Walach.