David Petraeus is the closest thing that America has to a warrior scholar. He is a Princeton PhD, 4-star General with battlefield commands and a global reputation for strategic ideas like the surge in Iraq. He was later commander of the US Central Command and head of US and NATO forces in Afghanistan. Petraeus retired from the Army to become director of the CIA, the Central Intelligence Agency. Today he is a partner at the global investment firm, KKR. David Petraeus wrote - with co-author historian Andrew Roberts - a bestselling book: Conflict: The Evolution of Warfare From 1945 to Gaza. Today, Petraeus discusses the War in Iran, Gaza, and Ukraine. For more, please visit www.charlierose.com