Bureau of International Security and Nonproliferation
Our Mission
Preventing the spread of WMD, delivery systems, and advanced conventional weapons capabilities — and rolling back such proliferation where it has already taken root — is the mission of the Bureau of International Security and Nonproliferation (ISN). In close collaboration with other bureaus within the State Department, other U.S. agencies, and a diverse range of international and non-governmental partners, ISN tracks, develops, and implements effective responses to proliferation threats and shapes the international security environment to prevent their recurrence.
The Latest
Inaugurating a New and More Realistic Global Disarmament Dialogue
Good morning, Excellencies, ladies, and gentlemen. Welcome to Washington, and to the First Plenary Meeting of the “Creating an Environment Working Group” (CEWG) under the auspices of the “Creating an Environment for Nuclear Disarmament” (CEND) Initiative. Let me start by thanking you, Under Secretary Thompson, for your continued leadership and support in this important initiative. […]
Full Text-
July 1, 2019
U.S. Calls on Iran To Halt All Uranium Enrichment
Offices
- Office of Conventional Arms Threat Reduction
- Office of Cooperative Threat Reduction
- Office of Counterproliferation Initiatives
- Office of Export Control Cooperation
- Office of Missile, Biological, and Chemical Nonproliferation
- Office of Multilateral Nuclear and Security Affairs
- Office of Nuclear Energy, Safety, and Security
- Office of Regional Affairs
- Office of Strategic Communications and Outreach
- Office of the Biological Policy Staff
- Office of the Nonproliferation and Disarmament Fund
- Office of Weapons of Mass Destruction Terrorism