200617-N-ZW825-0059 GREAT LAKES, Ill. (June 17, 2020) Secretary of Defense Mark T. Esper speaks to Sailors prior to conducting a reenlistment ceremony at Naval Station Great Lakes as part of his visit, June 17, 2020. Esper toured tenant commands on Naval Station Great Lakes as well as Recruit Training Command to observe the Navy’s implementation of Department of Defense COVID-19 mitigation measures which permit training and accession missions to safely continue during the global pandemic. (U.S. Navy photo by Chief Mass Communication Specialist Byron C. Linder/Released)