0101

File Title War Cabinet. Joint Intelligence Sub-Committee. Memoranda. 14th March - 21st April 1941. Papers Numbers. JIC 100-163. Volume XI
Reference CAB 81/101
Date 1 March 1941 - 30 April 1941
Government Department Cabinet Office
File Accession Date 1970

Description

A volume of reports commissioned for the Joint Intelligence Sub-Committee (JIC). The JIC was formed of representatives from the intelligence services, the armed services, and the Foreign Office. Its purpose was to assess military, security, and foreign policy requirements and coordinate Britain’s intelligence organisations accordingly. A vast range of international and domestic issues are investigated and analysed in the JIC’s reports. Subjects covered in this file include the exchange of prisoners of war; the possibility of defending Britain from invasion with poison gas; rumours of Allied secret weapons intended to damage German morale; censorship and arrangements to reduce the leakage of information; cover plans for troop movements and military operations; the British invasion of Iraq; German infiltration of Morocco; German army movements in Libya; the strength of the Yugoslav armed forces; the possibility of a German invasion of Ireland, Portugal, and the Cape Verde Islands; and German strategy in the Balkans.

Document Title Date
i Front Cover Download PDF (550 KB)
iii Table of Contents Download PDF (609 KB)
100 Report by Colonel C. Vickers, V.C. On His Mission to the British Communities in Certain American Countries and in Portugal. Note by the Secy. 14 March 1941 Download PDF (758 KB)
101 Exchange of Prisoners of War. Note by the Secy. 15 March 1941 Download PDF (677 KB)
102 Security Measures at Sea and Air Ports at Home and Overseas. Memorandum by the Director of Military Intelligence 16 March 1941 Download PDF (649 KB)
103 Control of Communications in the Event of Invasion. Note by the Secy. 16 March 1941 Download PDF (705 KB)
104 Special Service Troops - Security. Note by the Secy. 17 March 1941 Download PDF (201 KB)
105 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by the Secy. 17 March 1941 Download PDF (1.79 MB)
106 War Office Questionnaire Addressed to British Prisoners of War. Memorandum by Director of Intelligence, Air Ministry 19 March 1941 Download PDF (265 KB)
107 Plans to Induce Italy to Make a Separate Peace. Memorandum by the Director of Intelligence, Air Ministry 19 March 1941 Download PDF (366 KB)
108 Study of Enemy Intentions. Note by the Secy. 20 March 1941 Download PDF (879 KB)
109 Use of Cypher Telegrams by Foreign Missions in Certain Circumstances. Note by the Secy. 20 March 1941 Download PDF (373 KB)
110 General Treatment of Prisoners of War. Note by the Secy. 20 March 1941 Download PDF (1.02 MB)
111 Exchange of British and German Diplomatic and Consular Officials. Note by the Secy. 20 March 1941 Download PDF (443 KB)
112 Axis Planning Section. Memorandum by the Joint Intelligence Sub-committee on the Object Status and Responsibilities of the Axis Planning Section 22 March 1941 Download PDF (858 KB)
113 Special Operations - Security. Note by the Secy. 22 March 1941 Download PDF (710 KB)
114 Development of Air Intelligence. Memorandum by the Joint Intelligence Sub-Committee 3 April 1941 Download PDF (1.48 MB)
115 Possible German Attack on Iceland. Note by the Secy. 24 March 1941 Download PDF (172 KB)
116 Impending Operation by the Director of Combined Operations. Note by the Secy. 24 March 1941 Download PDF (569 KB)
117 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by the Secy. 24 March 1941 Download PDF (945 KB)
118 Scale of Attack by German Air-Borne Troops Against British Isles. Note by Secy. 25 March 1941 Download PDF (177 KB)
119 German Operations Following the Balkan Campaigns. Note by the Secy. 25 March 1941 Download PDF (1.95 MB)
120 Security Measures. Note by the Secy. 26 March 1941 Download PDF (379 KB)
121 Certain Moves by German Army and Air Force Units in Southern Tripolitania. Note by Secy. 31 March 1941 Download PDF (195 KB)
122 Iceland: Operations Against. Note by Secy. 27 March 1941 Download PDF (1.12 MB)
123 Yugoslavia: An Intelligence Appreciation of Possible Action By. 28 March 1941 Download PDF (1.23 MB)
124 British Forces in Ireland - Security. Note by Secy. 28 March 1941 Download PDF (200 KB)
125 Future Strategy. Note by Secy. 29 March 1941 Download PDF (338 KB)
126 Publications in War Time - Security. Note by Secy. 29 March 1941 Download PDF (339 KB)
127 Proposals for a Policy of Infiltration into Foreign Countries. Note by Secy. 29 March 1941 Download PDF (293 KB)
128 Iceland: Operations Against. Report by the J.I.C. 31 March 1941 Download PDF (1.19 MB)
129 Operation 'Truck' - Cover. Note by Secy. 30 March 1941 Download PDF (493 KB)
130 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 31 March 1941 Download PDF (982 KB)
131 Certain Moves by German Army and Air Force Units in Southern Tripolitania. Report by Axis Planning Section 1 April 1941 Download PDF (371 KB)
132 Future Strategy. Note by Secy. 2 April 1941 Download PDF (343 KB)
133 Atlantic Islands. Report by the J.I.C. 3 April 1941 Download PDF (179 KB)
134 Iraq: Move of British Forces Into. Note by Secy. 2 April 1941 Download PDF (180 KB)
135 Iraq: Move of British Troops Into. Note by Secy. 5 April 1941 Download PDF (542 KB)
136 German and Italian Moves in Libya. Note by Secy. 4 April 1941 Download PDF (181 KB)
137 Probable Axis Intentions in the Present Operations from Tripolitania. Report by J.I.C. 5 April 1941 Download PDF (589 KB)
138 German Strategy in 1941. Report by the Axis Planning Section 7 April 1941 Download PDF (1.43 MB)
139 Security Measures. Note by Secy. 5 April 1941 Download PDF (176 KB)
140 Security Measures at Sea and Air Ports at Home and Overseas. Note by Secy. 7 April 1941 Download PDF (504 KB)
141 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 7 April 1941 Download PDF (1.08 MB)
142 German Attack on Portugal. Note by Secy. 8 April 1941 Download PDF (678 KB)
143 Scale of Attack by German Airborne Troops against the British Isles. Report by J.I.C. 25 April 1941 Download PDF (1.30 MB)
144 German Strategy in 1941. Report by the J.I.C. 10 April 1941 Download PDF (1.62 MB)
145 Cape Verde Islands. Note by the Secy. 11 April 1941 Download PDF (856 KB)
146 Inversions of Temperature. Possibilities for Large Scale Use of Gas or Smoke over the United Kingdom. Note by the Secy. 11 April 1941 Download PDF (649 KB)
147 Axis Planning Section. Note by the Secy. 12 April 1941 Download PDF (246 KB)
148 Infiltration into Foreign Countries. Note by Secy. 14 April 1941 Download PDF (203 KB)
149 Air Threat in the Eastern Mediterranean. Note by Secy. 14 April 1941 Download PDF (173 KB)
150 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by the Secy. 14 April 1941 Download PDF (893 KB)
151 German Move Southward from Tripoli. Note by Secy. 15 April 1941 Download PDF (175 KB)
152 German Infiltration into Morocco. Activities of Germans, and French Reactions. Memo. By J.I.C. 15 April 1941 Download PDF (1.47 MB)
153 Cape Verde Islands. Report by J.I.C. 20 April 1941 Download PDF (400 KB)
154 Steps to Be Taken in the Event of a Greek Collapse. Note by Secy. 16 April 1941 Download PDF (189 KB)
155 Future Strategy of Japan. Note by Secy. 17 April 1941 Download PDF (3.17 MB)
156 Future Strategy. Note by Secy. 18 April 1941 Download PDF (818 KB)
157 German Infiltration into Morocco. Report by J.I.C. 18 April 1941 Download PDF (1.01 MB)
158 Reported Japanese Expedition. Note by Secy. 18 April 1941 Download PDF (361 KB)
159 Information to Be Passed to Service Attaches of French Diplomatic Missions. Memo. By J.I.C. 25 April 1941 Download PDF (280 KB)
160 Reported Japanese Intention to Attack Malaya. Report by J.I.C. 20 April 1941 Download PDF (546 KB)
161 Assembly and Training Area for Overseas Expeditions. Note by Secy. 19 April 1941 Download PDF (642 KB)
162 Possible Axis Action in Syria in the near Future. Note by Secy. 20 April 1941 Download PDF (974 KB)
163 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 21 April 1941 Download PDF (648 KB)
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