Sources for this episode include:
- Frank Gardner in “Five Eyes: Is the alliance in trouble over China?” from BBC
- Jagannath Panda and Ankit Panda in “RESOLVED: Japan Is Ready to Become a Formal Member of Five Eyes” from the Center for Strategic & International Studies
- Patrick Gerard Buchan and Benjamin Rimland in “Defining the Diamond: The Past, Present, and Future of the Quadrilateral Security Dialogue” from the Center for Strategic & International Studies
- The North Atlantic Treaty Organization or NATO