Defense Threat Reduction Agency

Defense Threat Reduction Agency

Seal
Agency overview
Formed	1 October 1998
Preceding agencies	Defense Special Weapons Agency, (1996–1998) Defense Nuclear Agency, (1971–1996) Defense Atomic Support Agency, (1959–1971) Armed Forces Special Weapons Project, (1947–1959) Manhattan Project (1942–1946)
Headquarters	Fort Belvoir, Virginia
Employees	2,100+ civilian and military
Annual budget	$2.0 billion USD (2023)
Agency executives	Rebecca Hersman, Director Brig. Gen. Lyle K. Drew, U.S. Air Force, Deputy Director Dr. Rhys Williams, Executive Director SgtMaj Daniel E. Mangrum, U.S. Marine Corps[1], Command Senior Enlisted Advisor
Parent agency	U.S. Department of Defense
Website	dtra.mil

United States Armed Forces
Executive departments
United States Department of Defense Department of Homeland Security
Staff
Office of the Secretary of Defense Joint Chiefs of Staff
Military departments
U.S. Department of the Army U.S. Department of the Navy U.S. Department of the Air Force
Military services
United States Army United States Marine Corps United States Navy United States Air Force United States Space Force United States Coast Guard
Command structure
Unified combatant commands Africa Command Central Command European Command Indo-Pacific Command Northern Command Southern Command Cyber Command Space Command Special Operations Command Strategic Command Transportation Command
Combat support agencies Defense Contract Management Agency Defense Health Agency Defense Information Systems Agency Defense Intelligence Agency Defense Logistics Agency Defense Threat Reduction Agency National Geospatial-Intelligence Agency National Security Agency
Combat Response Agencies
Central Command European Command Indo-Pacific Command Northern Command Southern Command Cyber Command Space Command Special Operations Command Strategic Command Transportation Command
v t e

The Defense Threat Reduction Agency (DTRA) is both a defense agency and a combat support agency within the United States Department of Defense (DoD) for countering weapons of mass destruction (WMD; chemical, biological, radiological, nuclear, and high explosives) and supporting the nuclear enterprise. Its stated mission is to provide "cross-cutting solutions to enable the Department of Defense, the United States Government, and international partners to Deter strategic attack against the United States and its allies; Prevent, reduce, and counter WMD and emerging threats; and Prevail against WMD-armed adversaries in crisis and conflict."^[2] DTRA is headquartered in Fort Belvoir, Virginia. The DTRA mission, organization and management, responsibilities and functions, relationships, authorities, and administration are defined in DoD Directive 5105.62, Defense Threat Reduction Agency (DTRA).^[3]