Wes Clark on McCain

From yesterday's Huffington Post:

"I know he's trying to get traction by seeking to play to what he thinks is his strong suit of national security," Clark said of McCain while speaking from his office in Little Rock, Arkansas. "The truth is that, in national security terms, he's largely untested and untried. He's never been responsible for policy formulation. He's never had leadership in a crisis, or in anything larger than his own element on an aircraft carrier or [in managing] his own congressional staff. It's not clear that this is going to be the strong suit that he thinks it is."

Resume aside, though, Clark also took issue with the Arizona Republican's instincts on national security. "McCain's weakness is that he's always been for the use of force, force and more force. In my experience, the only time to use force is as a last resort. ... When he talks about throwing Russia out of the G8 and makes ditties about bombing Iran, he betrays a disrespect for the office of the presidency."

Thank you, General. I just don't understand how so many people buy into the claim that somehow John McCain possesses "unassailable" national security credentials. Other than his time as a pilot and POW (and again, not sure how that translates), just what are those credentials?