Defense Secretary Ash Carter is scheduled to participate in the change of responsibility ceremony as Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, transitions responsibility to Marine Corps Gen. Joseph F. Dunford, Jr., on Joint Base Myer-Henderson Hall, Va. The ceremony will conclude with an Armed Forces full honors retirement ceremony honoring Dempsey's more than 41 years of service. Click here at 2:30 p.m. EDT for live coverage.