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The Defense Threat Reduction Agency (DTRA) is a unit in the U.S. Department of Defense established in 1998. DTRA is the U.S. Department of Defense’s official Combat Support Agency for countering weapons of mass destruction. DTRA is responsible for reducing the risk of and defending against attacks that involve nuclear, chemical, biological, or other weapons of mass destruction. DTRA’s programs include basic science research and development, operational support to U.S. war fighters on the front line, and an in-house WMD think tank which aims to anticipate and mitigate future threats long before they have a chance to harm the United States and its allies. DTRA works with the military services, other elements of the United States government, and countries across the planet on counter-proliferation, nonproliferation and WMD reduction issues with a goal to make the world safer.