BATTLE OF THE ATLANTIC Volume III German Naval Communications Intelligence	SRH-024
National Security Agency Central Security Service

Table of Contents

Chapter		Page
I	Organization and Working of German Naval Communications Intelligence	1
II	Intelligence Disseminated to U-boats and the Sources Acknowledged in U-boats Traffic	11
III	German Intelligence on Allied Convoys in the Atlantic	21
IV	Compromise of Naval Ciphers #3 and #5	35
V	"B-Dienst" Aboard U-boats	55
VI	German-Japanese Cooperation in Communication Intelligence	65
VII	German Fears of the Compromise of Their Naval Cipher	83