[–] Veryconcerned71 [S] 0 points 1 point 1 point (+1|-0) ago
OK guys.... Dug a little deeper. There is a book called "MI5 IN THE GREAT WAR!"
Chapter V - 1918
"The collection of ciphers and codes (D5) was handed over to D Branch as also the coordination of British Special Intelligence Missions in Allied Countries (D4)
Tell me that isn't relevant? Here is the link to that book:
[–] VigilantTruthSeeker2 ago
That is very interesting. Thanks for the info.