Tom Griffin on intelligence history

Tom Griffin on intelligence history

F Branch MI5 1953-88

counter-subversion

Tom Griffin's avatar
Tom Griffin
Nov 28, 2022
∙ Paid

F Branch was formerly part of the Security Service, MI5. It was responsible for counter-subversion until 1988.

Keep reading with a 7-day free trial

Subscribe to Tom Griffin on intelligence history to keep reading this post and get 7 days of free access to the full post archives.

Already a paid subscriber? Sign in
© 2025 Tom Griffin · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture