0100

File Title War Cabinet. Joint Intelligence Sub-Committee. Memoranda. 15th January - 12th March 1941. Papers Numbers. JIC 23-99. Volume X
Reference CAB 81/100
Date 1 January 1941 - 31 March 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 commando raids and irregular warfare; domestic security; cover plans and arrangements to preserve the secrecy of operations; preparations to resist the expected German invasion of Britain; rumours designed to damage German morale; German infiltration of Bulgaria; predicted German plans for the invasion of Greece and Algeria; a proposed exchange of British and Italian prisoners of war; and speculation about Japanese intentions in South East Asia.

Document Title Date
i Front Cover Download PDF (1.90 MB)
iii Table of Contents Download PDF (2.61 MB)
23 Attack. Scales of, Against a Certain Island. Note by Secy. Reference to J.I.C.(40) 414 15 January 1941 Download PDF (481 KB)
24 Irregular Activities. Note by Secy. Annex. J.P.(41) 14 (S) Draft 15 January 1941 Download PDF (1.74 MB)
25 Certain Island: Scales of Attack against. Report by J.I.C. 17 January 1941 Download PDF (2.04 MB)
26 Far East: Intelligence Organisation in. Report by J.I.C. 17 January 1941 Download PDF (2.27 MB)
27 Supply of Photographs for Intelligence. Note by Secy. Covering Letter from the D.M.I. 16 January 1941 Download PDF (1.02 MB)
28 Employment of Gas by the Germans. Note by Secy. 19 January 1941 Download PDF (420 KB)
29 Tunisia: Possible German Action against. Note by Secy. Covering Copy of Telegram from Naval Attache at Washington 17 January 1941 Download PDF (1.23 MB)
30 Operation 'Workshop' Cover. Note by Secy. Covering Memo. By I.S.S.B. 17 January 1941 Download PDF (2.36 MB)
31 Operations 'Shrapnel' and 'Brisk'. Possibility of Fifth Column Operation. Report by J.I.C. 21 January 1941 Download PDF (2.61 MB)
32 Tunisia: Possible German Action against. Report by J.I.C. 19 January 1941 Download PDF (3.00 MB)
33 Certain Island: Intelligence Regarding. Note by Secy. Covering a Minute to the Secy. Of the J.P.S. 20 January 1941 Download PDF (3.02 MB)
34 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy. Note by Secy Covering Memo. For Consideration by Junior Members of the J.I.C. 20 January 1941 Download PDF (2.34 MB)
35 German Invasion of the British Isles. Report by J.I.C. 31 January 1941 Download PDF (16.19 MB)
36 Invasion: Home Security Measures to Meet the Threat of. Note by Secy. 21 January 1941 Download PDF (1.44 MB)
37 Navicerts: Procedure in Relation to Applications For. Note by Secy Covering Letter from M.E.W. 21 January 1941 Download PDF (1.04 MB)
38 Abyssinia : Civilian Population. Note by Secy. 22 January 1941 Download PDF (1.26 MB)
39 Irregular Activities. Note by Secy. 23 January 1941 Download PDF (946 KB)
40 Supply of Photographs for Intelligence. Memo. By the D.of I., Air Ministry 23 January 1941 Download PDF (750 KB)
41 Abyssinia: Civil Population. Note by Secy. Covering Report 23 January 1941 Download PDF (1.55 MB)
42 French North Africa: German Attack On. Note by Secy. 23 January 1941 Download PDF (1.26 MB)
43 Bulgaria: German Penetration Into. Note by Secy. Covering Letter to Three Ds. of I. From the Foreign Office 25 January 1941 Download PDF (1.36 MB)
44 French North Africa: German Attack On. Report by the J.I.C. 28 January 1941 Download PDF (8.27 MB)
45 Security of Operations. Note by Secy. 26 January 1941 Download PDF (2.19 MB)
46 Bulgaria: German Penetration Into. Report by J.I.C. 28 January 1941 Download PDF (3.47 MB)
47 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy 27 January 1941 Download PDF (3.98 MB)
48 Form of J.I.C. Papers. Note by Secy. 29 January 1941 Download PDF (2.13 MB)
49 United Kingdom: Return of 102 Force to. Note by Secy Covering Memo. By the I.S.S.B. 30 January 1941 Download PDF (3.35 MB)
50 Iraq: Situation in. Note by Secy. 31 January 1941 Download PDF (3.56 MB)
51 Japanese Intentions. Note by Secy. 1 February 1941 Download PDF (7.56 MB)
52 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy 3 February 1941 Download PDF (7.28 MB)
53 Japanese Intentions: Note by Secy. 3 February 1941 Download PDF (1.58 MB)
54 C.S.D.I.C.(U.D.): Priority for: - Camps 10 and 20 Note by D.M.I. 4 February 1941 Download PDF (2.64 MB)
55 Japanese Intentions. Report by J.I.C. 5 February 1941 Download PDF (3.60 MB)
56 Jic.Topographical Section: Report On. Memo. By Foreign Office and D.S of I. 6 February 1941 Download PDF (1.84 MB)
57 Air Intelligence: Development of. Memo. By D.M.I. 6 February 1941 Download PDF (2.83 MB)
58 Enemy Intentions: Study of. Note by D.M.I. 6 February 1941 Download PDF (1.56 MB)
59 Intelligence Summaries. Note by Secy. 7 February 1941 Download PDF (2.72 MB)
60 Western Libya: Action by French Volunteers against. Note by Secy. Circulation Various Papers 7 February 1941 Download PDF (2.02 MB)
61 Japan: Possible Action against. Memo. By J.I.C. 7 February 1941 Download PDF (1.30 MB)
62 Mediterranean: Possible Axis Intentions in. Note by Secy. 7 February 1941 Download PDF (1.48 MB)
63 Development of Air Intelligence. Memo. By J.I.C. 10 February 1941 Download PDF (2.66 MB)
64 German Invasion of the British Isles. Note by Secy. 10 February 1941 Download PDF (1.39 MB)
65 Provision of Topographical Intelligence for Planning. Note by Secy. 10 February 1941 Download PDF (1.26 MB)
66 Topographical Information Required for Planning. Algeria. Note by Secy. 10 February 1941 Download PDF (724 KB)
67 Special Service Troops - Security. Note by Secy. 11 February 1941 Download PDF (2.81 MB)
68 Priority for C.S.D.I.C.(U.K.) Camps 10 and 20. Memo. By J.I.C. 11 February 1941 Download PDF (1.33 MB)
69 Casablanca: Situation At. Note by Secy. 12 February 1941 Download PDF (686 KB)
70 Possible German Action in the Mediterranean. (Not Proceeded with) 15 February 1941 Download PDF (971 KB)
71 Censorship in the U.S.A. Memo. By Director of Intelligence, Air Ministry 14 February 1941 Download PDF (753 KB)
72 Visit of the Portuguese Delegation to This Country. Note by Secy. 14 February 1941 Download PDF (1.35 MB)
73 Use of Cypher Telegrams by Foreign Missions in Certain Circumstances. Note by Secy. 17 February 1941 Download PDF (714 KB)
74 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy. Note by Secy. 17 February 1941 Download PDF (3.25 MB)
75 The Defence of Rhodes by the German Air Force. Memo. By Air Ministry 18 February 1941 Download PDF (1.69 MB)
76 Security at Ports. Memo. By D.M.I. 20 February 1941 Download PDF (3.08 MB)
77 German Invasion of the British Isles. Note by Secy. 21 February 1941 Download PDF (1.02 MB)
78 United Kingdom: German Invasion of Report 23 February 1941 Download PDF (1.87 MB)
79 Intelligence Regarding the Results of Our Bombing Policy in Germany during the Last Six Months 23 February 1941 Download PDF (814 KB)
80 Prisoners of War. Note by Director of Prisoners of War 23 February 1941 Download PDF (2.68 MB)
81 Special Service Troops - Security. Note by Secy. 23 February 1941 Download PDF (5.91 MB)
82 Provision of Topographical Intelligence. Note by Secy. 24 February 1941 Download PDF (10.05 MB)
83 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 24 February 1941 Download PDF (3.71 MB)
84 Operation 'Ballast' - Cover and Security Measures. Note by Secy. 26 February 1941 Download PDF (1.96 MB)
85 German Attack on Greece. Note by Secy. 27 February 1941 Download PDF (630 KB)
86 Germans at Casablanca. Note by Secy. 2 March 1941 Download PDF (2.11 MB)
87 German Attack on Greece. Report by J.I.C. 2 March 1941 Download PDF (4.25 MB)
88 Supply of Intelligence in Certain Areas. Note by Secy. 3 March 1941 Download PDF (2.44 MB)
89 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 3 March 1941 Download PDF (3.79 MB)
90 German Action in the Mediterranean Area. Memo. By the J.I.C. 5 March 1941 Download PDF (3.30 MB)
91 Censorship in the U.S.A. Note by Secy. 4 March 1941 Download PDF (1.17 MB)
92 Development of Air Intelligence. Note by Secy. 5 March 1941 Download PDF (696 KB)
93 Provision of Topographical Intelligence. Note by Secy. 6 March 1941 Download PDF (1.20 MB)
94 Scale of Attack on Portugal. Note by Secy. 8 March 1941 Download PDF (3.02 MB)
95 Impending Operation by the Director of Combined Operations. Note by Secy. 8 March 1941 Download PDF (1.65 MB)
96 Scale of Attack on Portugal. Note by Secy. 10 March 1941 Download PDF (2.88 MB)
97 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 10 March 1941 Download PDF (2.95 MB)
98 Enemy Intelligence: Study of. Note by Secy. 12 March 1941 Download PDF (2.77 MB)
99 Security - Special Service Troops. Note by Secy. 12 March 1941 Download PDF (1.23 MB)
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