Welcome to RUSI

The Royal United Services Institute (RUSI) is the world's oldest independent think tank on international defence and security. Read more »

Web account notice

If you have a web account, please note that you will need to reset your password due to a software security update. Instructions are included on the log-in page.

Over the next 18 months, RUSI’s historic headquarters at 61 Whitehall will be renovated.

Think Tank of the Year Winner

RUSI named Think Tank of the Year by the Prospect magazine


RUSI members have access to the very best defence and security analysis and are introduced to a network of peers, specialists and decision-makers.


Grow your organisation and shape the conversation through RUSI’s unique knowledge, independent insight and exclusive networks.

Top Tier Partnership

This is the elite tier of RUSI membership. Members at this level receive full access to the Institute’s high-level networks and research teams.


Keeping you informed, engaged and connected - RUSI Individual membership places you at the heart of the global defence and security community.