National Security, Intelligence and International Affairs
The work that the security and intelligence community does every day makes a difference in the lives of all people who call Canada home. It helps safeguard our democracy and keep our communities safe.
Headed by the Deputy Secretary to the Cabinet, National Security and Intelligence and the Senior Diplomatic and International Affairs Advisor to the Prime Minister, the National Security, Intelligence and International Affairs Branch (NSIIA) provides policy support to the Prime Minister and the Clerk of the Privy Council. The Branch’s Secretariats coordinate operational and policy advice in the areas of foreign affairs, defence, national security and intelligence.
About the National Security, Intelligence and International Affairs Branch at the Privy Council Office
Organization and mandate
Read about the organization and mandate of the National Security, Intelligence and International Affairs Branch.
Reports and publications
Read about National Security, Intelligence and International Affairs Branch activities, initiatives, and reporting.
National Security Transparency Commitment
Find out about the Government of Canada’s National Security Transparency Initiative.
Security and Intelligence Threats to Elections Task Force
Find out about this whole-of-government working group that coordinates Government of Canada collection and analysis efforts concerning threats to Canada’s federal election processes.
Biographies
Read the biographies of the Senior Diplomatic and International Affairs Advisor to the Prime Minister and Deputy Secretary to the Cabinet, National Security and Intelligence.
News
- Meeting between Minister of Public Safety, Canada’s Deputy Clerk and National Security and Intelligence Advisor to the Prime Minister and India’s National Security Adviser - February 7, 2026
- Canada’s National Security and Intelligence Advisor and Japan’s National Security Advisor discuss regional security – December 16, 2025
- Canada’s National Security and Intelligence Advisor, Nathalie G. Drouin, issued a statement on trip to India - September 20, 2025
Features

Canada's Intelligence Priorities
The Intelligence Priorities are the foundation upon which the national security and intelligence community operates, and represents most vital factors to ensuring Canadian safety, security, and prosperity.