Player Embed Code: Download Embed Share DoD News Update: CJCS Leaves Words of Wisdom to Next Generation Defense.gov Sept. 25, 2015 | 0:59 ℠2015 – Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey transitioned responsibility to Marine Corps Gen. Joseph Dunford on Joint Base Myer-Henderson Hall, VA., September 25. The ceremony concluded with an armed forces full honors retirement ceremony honoring Dempsey's 41 years of service.