About us

The UK Integrated Security Fund (UKISF) is a government-wide fund that addresses the highest-priority threats to UK national security, at home and abroad.


About the UK Integrated Security Fund (UKISF)

The UK Integrated Security Fund (UKISF) uses a whole-of-government approach to find creative solutions to the most complex national security challenges outlined in the Integrated Review Refresh 2023 (IRR).

The ISF replaced the Conflict, Stability and Security Fund (CSSF) on 1 April 2024. It builds on the success of the CSSF, which started in 2015. The CSSF enabled the UK government to improve how it addressed the greatest threats to UK national security from abroad, including conflict, transnational threats and hostile state activity. Find out more about the CSSF.

Operating in over 90 countries and territories, the ISF combines Official Development Assistance (ODA) and non-ODA  funding sources. This gives a broad geographic and thematic reach and combines funding in a way few other international donors can.

The ISF aims to be:

  • integrated: using expertise from across government departments and agencies
  • catalytic: mobilising smaller-scale activities with a view to upscaling, providing the foundation and evidence base for longer-term programmes
  • high risk: allowing ISF programmes to act in unstable or uncertain environments
  • agile: responsive to changing circumstances

The ISF also manages the UK government’s funding of peacekeeping operations and deployments, and the Rapid Response Mechanism (RRM). The RRM allows for the rapid mobilisation of emergency non-ODA resources. The RRM has supported the government’s response to several major international crises. It funded part of the immediate UK government response to the illegal Russian invasion of Ukraine.

Accountability

The ISF operates across government. The Foreign, Commonwealth & Development Office, Home Office, Ministry of Defence and other departments administer its programmes.

The ISF is managed by the Joint Funds Unit, part of the Cabinet Office. The governing board includes ministers from across government that report to the National Security Council.

Cabinet Office Minister of State Baroness Neville-Rolfe DBE CMG is accountable to Parliament for the ISF. The Senior Responsible Owner is the Deputy National Security Adviser.

The ISF’s overall strategic direction is aligned with the UK government’s national security priorities.

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