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Eavesdropping on Hell: Historical Guide to Western Communications Intelligence and the Holocaust, 1939-1945 by Robert J. Hanyok

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Glossary of Terms, Abbreviations, and Acronyms

Abwehr

German military intelligence

AHS

Arlington Hall Station

"BJ"

"blue jacket" or "Black Jumbo," terms for diplomatic translations done by the GC&CS

BPIE

Bletchley Park Intelligence Exchange

BRUSA

Britain/United States of America

C/A

Cryptanalysis

CI

code instruction

Cipher

A method of concealing plaintext by transposing letters or numbers or by substituting other letters or numbers according to a key

Code

A method of concealing a message text in which arbitrary groups of letters, numbers, or other symbols replace words, phrases, letters, or numbers for the purposes of concealment or brevity.

COMINT

communications intelligence

COMINTERN

communist international

CSS

Chief, Secret Service (Director, MI-6)

D/F

direction finding ...

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