Dr. John Sherwood interviews General David H. Petraeus about his new book, co-authored with Andrew Roberts, entitled Conflict: The Evolution of Warfare from 1945 to Ukraine. Topics covered include the characteristics of strategic leadership in war; and how technology has changed war since World War II. He also offers some career advice to midshipmen and cadets drawn from his life experiences, which include command of the 

surge in Iraq, U.S. CENTCOM, and the International Security Assistance Force in Afghanistan