1. Defense civil support: DOD, HHS, and DHS should use existing coordination mechanisms to improve their pandemic preparedness : report to the Committee on Armed Services, House of Representatives Publication: Washington, D.C. : U.S. Government Accountability Office, February 2017 Subject(s): Civil DefenseInterinstitutional RelationsPandemicsDisaster PlanningFederal GovernmentHumansUnited StatesUnited States. Department of Defense.United States. Department of Health and Human Services.United States. Department of Homeland Security.