U.S. Commander in Iraq, General George “Casey already had tried a [troop] surge in Baghdad in the summer of 2006, the former chairman of the Joint Chiefs of Staff [Colin Powell] argued in a December [17, 2006] appearance on CBS’s Face the Nation. So, Powell said, ‘I am not persuaded that another surge of troops into Baghdad for the purpose of suppressing this communitarian violence, this civil war, will work.’ At any rate, he added, ‘There really are no additional troops.’ ”
– Thomas E. Ricks, The Gamble, Page 93