The World Health Organization declared a Public Health Emergency of International Concern for the 2019 novel coronavirus (COVID-19) outbreak on January 30, 2020. On January 31, 2020, the Secretary of Health and Human Services declared a Public Health Emergency in the United States and announced new measures to prevent the spread of COVID-19. Since the outbreak of COVID-19, the DoD has sought to address the impact of COVID-19 on the health and safety of DoD personnel and their dependents. For example, the DoD initiated travel restrictions, canceled or postponed training exercises, transferred medical supplies to other Government agencies, deployed U.S. Navy Hospital ships to areas impacted by the outbreak, quarantined civilians on military installations, and various other measures. This memorandum is to formally inform you that the Department of Defense Office of Inspector General (DoD OIG) is initiating a research project to conduct research, examine the impact of COVID-19 on DoD operations, review measures that the DoD has taken to address the impact of COVID-19, and identify topics for potential DoD OIG audits and evaluations. This research will include data gathering and inquiries into areas such as personnel management; military operations, training, and exercises; human capital; medical readiness and welfare; supply chain management; financial management; cyberspace operations and security; support for civilian authorities; initiatives pertaining to military readiness and the health and welfare of the total force; and other areas.