Top DOD Officials to Hold Virtual Town Hall Meeting Published July 16, 2020 DOD News Defense Secretary Dr. Mark T. Esper; Army Gen. Mark A. Milley, chairman of the Joint Chiefs of Staff; and Senior Enlisted Advisor to the Chairman Ramón "CZ" Colón-López will hold a virtual global town hall meeting at the Pentagon to answer questions from service members, Defense Department civilians and family members about topics including diversity and inclusion in DOD, COVID-19, developments in the South China Sea and more July 17, 2020, at 1 p.m. EDT.