What is a Combat Support Agency?

Introduction Combat support agency (CSA) is a designation by the United States Department of Defence (DoD) of those defence agencies that provide department-level and tactical support to the US military during combat operations. Background The designation was first outlined by the Goldwater-Nichols Department of Defence Reorganisation Act of 1986, with subsequent additions based on the… Read More


What is the Defence Threat Reduction Agency?

Introduction The Defence Threat Reduction Agency (DTRA) is a combat support agency within the United States Department of Defence (DoD) for countering weapons of mass destruction (WMD; chemical, biological, radiological, nuclear, and high explosives). According to the agency’s Strategic Plan for Fiscal Years 2018 to 2022, the DTRA mission: “enables DoD and the U.S. Government… Read More