Player Embed Code: Download Embed Share Brown Speaks at Retirement Ceremony Defense.gov Nov. 3, 2023 | 01:38:29 Joint Chiefs of Staff Chairman Air Force Gen. CQ Brown, Jr. speaks at the change of responsibility and retirement ceremony for Senior Enlisted Advisor to the Chairman Ramón “CZ” Colón-López at Joint Base Myer-Henderson Hall, Va. Sergeant Major of the Marine Corps Troy E. Black then becomes the new senior enlisted advisor to the chairman.