Bureau_of_International_Security_and_Nonproliferation
Bureau of International Security and Nonproliferation
U.S. State Department division
The Bureau of International Security and Nonproliferation (ISN) is a bureau within the United States Department of State responsible for managing a broad range of nonproliferation and counterproliferation functions. The bureau leads U.S. efforts to prevent the spread of weapons of mass destruction (nuclear, chemical, and biological weapons), their delivery systems, advanced conventional weapons, and related materials, technologies, and expertise.
It was created on September 13, 2005, when the Bureau of Arms Control and the Bureau of Nonproliferation were merged. Stephen G. Rademaker was the first Acting Assistant Secretary of State for International Security and Nonproliferation. He had been the Assistant Secretary for the Bureau of Arms Control, and in February 2005 he was named the head of the Bureau for Nonproliferation pending the two bureaus' merger.