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Bureau of International Security and Nonproliferation

Office of Cooperative Threat Reduction

Our Mission

The Office of Cooperative Threat Reduction coordinates its programming closely with other offices at the State Department as well as with other U.S. Government agencies, including the Departments of Defense, Energy, Homeland Security, Health and Human Services, and Agriculture.

U.S. Department of State

Welcome to the new State.gov

Our new design makes it easier to find and learn about the State Department’s programs and services—from passports and visas to learning how U.S. diplomacy benefits the American people.