My Conversation with Colonel H.R. McMaster

05/25/2011 12:35 pm ET

Colonel H.R. McMaster is known as one of the leading experts on counterinsurgency warfare in the U.S. military. In 2005-2006 he led the effort to clean out the restive city of Tal Afar in northwest Iraq, and he's recently served as an adviser to Gen. David Petraeus. Here's a look at a recent conversation I had with the Colonel about the state of the war and what the U.S. military has learned about combating an insurgency.