Winnefeld Makes Remarks at U.S. Naval Institute Navy Adm. James A. Winnefeld Jr., vice chairman of the Joint Chiefs of Staff addresses the audience during the 2015 U.S Naval Institute Annual Meeting in Washington, D.C., April 22, 2015. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 651592-L-ESG56-567.jpg Photo Gallery