09 March 2015 Winnefeld: Demilitarized Zone Provides Reminder Why Military Defends Freedoms The vice chairman of the Joint Chiefs of Staff visited Korea's demilitarized zone yesterday, where soldiers from North Korea and South Korea have stared each other down for more than six decades after an armistice ended hostilities of the Korean War. Navy Adm. James A. Winnefeld Jr. said the tour is...