Former CENTCOM head's new book reflects on leading most active command in U.S. military

The United States military has divided the world into different regional commands and put a general or admiral in charge of planning and conducting military operations in that part of the world. For the past two and a half decades, the Middle East has been the busiest. Nick Schifrin spoke with retired Gen. Frank McKenzie, a former commander who was in charge during a particularly momentous time. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders