The independent resource on global security

Nuclear disarmament, arms control and non-proliferation

Museum of Science and Industry in Hiroshima, Japan on 6 August 1945
Museum of Science and Industry in Hiroshima, Japan on 6 August 1945. Photo: Everett Historical

Nuclear weapons and international efforts to control them have been at the core of SIPRI’s research since the founding of the institute.  Our work includes looking at legal, political, technical and historical aspects of nuclear disarmament, arms control and non-proliferation, including the implementation and verification of relevant international treaties.

An important part of SIPRI's work on nuclear weapons is its world nuclear forces data, which reveals annual estimates on the number and types of nuclear weapons held around the world.

SIPRI is one of four institutes managing the EU Non-Proliferation and Disarmament Consortium, a group of research centres and think tanks that promotes the non-proliferation of weapons of mass destruction. 


World nuclear forces

SIPRI tracks the trends and developments in nuclear forces and doctrines, with a particular focus on monitoring global inventories of nuclear weapons.


Nuclear dynamics in North East Asia

SIPRI conducts research on nuclear postures and security trends in North East Asia.

Arms control in the Middle East

SIPRI closely monitors JCPOA implementation, tracks efforts to establish a regional WMDFZ, and follows related issues such as sanctions, missile proliferation and broader regional security trends.

Opening meeting of the 2010 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), held in New York, USA

SIPRI conducts research to facilitate both nuclear disarmament and non-proliferation, and it analyses developments related to the NPT and the TPNW, including the interrelationship between the two treaties.

Nuclear arms control

SIPRI analyses the causes behind the current Russian–US nuclear arms control deadlock and examines concrete measures to mitigate or overcome them.

Nuclear trends in South Asia

SIPRI explores themes such as strategic asymmetry, territorial disputes, changes in nuclear postures and the impact of emerging technologies on nuclear dynamics in South Asia.

Inside the flight tube of a mass spectrometer, an instrument used in nucler forensics

SIPRI conducts research on various nuclear security issues including nuclear forensics.