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 (553 KB)
iii Table of Contents Download PDF (864 KB)
23 Attack. Scales of, Against a Certain Island. Note by Secy. Reference to J.I.C.(40) 414 15 January 1941 Download PDF (151 KB)
24 Irregular Activities. Note by Secy. Annex. J.P.(41) 14 (S) Draft 15 January 1941 Download PDF (522 KB)
25 Certain Island: Scales of Attack against. Report by J.I.C. 17 January 1941 Download PDF (612 KB)
26 Far East: Intelligence Organisation in. Report by J.I.C. 17 January 1941 Download PDF (585 KB)
27 Supply of Photographs for Intelligence. Note by Secy. Covering Letter from the D.M.I. 16 January 1941 Download PDF (303 KB)
28 Employment of Gas by the Germans. Note by Secy. 19 January 1941 Download PDF (123 KB)
29 Tunisia: Possible German Action against. Note by Secy. Covering Copy of Telegram from Naval Attache at Washington 17 January 1941 Download PDF (359 KB)
30 Operation 'Workshop' Cover. Note by Secy. Covering Memo. By I.S.S.B. 17 January 1941 Download PDF (673 KB)
31 Operations 'Shrapnel' and 'Brisk'. Possibility of Fifth Column Operation. Report by J.I.C. 21 January 1941 Download PDF (773 KB)
32 Tunisia: Possible German Action against. Report by J.I.C. 19 January 1941 Download PDF (886 KB)
33 Certain Island: Intelligence Regarding. Note by Secy. Covering a Minute to the Secy. Of the J.P.S. 20 January 1941 Download PDF (839 KB)
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 (637 KB)
35 German Invasion of the British Isles. Report by J.I.C. 31 January 1941 Download PDF (4.66 MB)
36 Invasion: Home Security Measures to Meet the Threat of. Note by Secy. 21 January 1941 Download PDF (441 KB)
37 Navicerts: Procedure in Relation to Applications For. Note by Secy Covering Letter from M.E.W. 21 January 1941 Download PDF (307 KB)
38 Abyssinia : Civilian Population. Note by Secy. 22 January 1941 Download PDF (355 KB)
39 Irregular Activities. Note by Secy. 23 January 1941 Download PDF (266 KB)
40 Supply of Photographs for Intelligence. Memo. By the D.of I., Air Ministry 23 January 1941 Download PDF (233 KB)
41 Abyssinia: Civil Population. Note by Secy. Covering Report 23 January 1941 Download PDF (469 KB)
42 French North Africa: German Attack On. Note by Secy. 23 January 1941 Download PDF (364 KB)
43 Bulgaria: German Penetration Into. Note by Secy. Covering Letter to Three Ds. of I. From the Foreign Office 25 January 1941 Download PDF (380 KB)
44 French North Africa: German Attack On. Report by the J.I.C. 28 January 1941 Download PDF (2.43 MB)
45 Security of Operations. Note by Secy. 26 January 1941 Download PDF (642 KB)
46 Bulgaria: German Penetration Into. Report by J.I.C. 28 January 1941 Download PDF (1.02 MB)
47 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy 27 January 1941 Download PDF (1.12 MB)
48 Form of J.I.C. Papers. Note by Secy. 29 January 1941 Download PDF (657 KB)
49 United Kingdom: Return of 102 Force to. Note by Secy Covering Memo. By the I.S.S.B. 30 January 1941 Download PDF (1.32 MB)
50 Iraq: Situation in. Note by Secy. 31 January 1941 Download PDF (1.07 MB)
51 Japanese Intentions. Note by Secy. 1 February 1941 Download PDF (2.12 MB)
52 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy 3 February 1941 Download PDF (3.86 MB)
53 Japanese Intentions: Note by Secy. 3 February 1941 Download PDF (519 KB)
54 C.S.D.I.C.(U.D.): Priority for: - Camps 10 and 20 Note by D.M.I. 4 February 1941 Download PDF (764 KB)
55 Japanese Intentions. Report by J.I.C. 5 February 1941 Download PDF (1.02 MB)
56 Jic.Topographical Section: Report On. Memo. By Foreign Office and D.S of I. 6 February 1941 Download PDF (546 KB)
57 Air Intelligence: Development of. Memo. By D.M.I. 6 February 1941 Download PDF (827 KB)
58 Enemy Intentions: Study of. Note by D.M.I. 6 February 1941 Download PDF (501 KB)
59 Intelligence Summaries. Note by Secy. 7 February 1941 Download PDF (796 KB)
60 Western Libya: Action by French Volunteers against. Note by Secy. Circulation Various Papers 7 February 1941 Download PDF (595 KB)
61 Japan: Possible Action against. Memo. By J.I.C. 7 February 1941 Download PDF (363 KB)
62 Mediterranean: Possible Axis Intentions in. Note by Secy. 7 February 1941 Download PDF (407 KB)
63 Development of Air Intelligence. Memo. By J.I.C. 10 February 1941 Download PDF (794 KB)
64 German Invasion of the British Isles. Note by Secy. 10 February 1941 Download PDF (432 KB)
65 Provision of Topographical Intelligence for Planning. Note by Secy. 10 February 1941 Download PDF (353 KB)
66 Topographical Information Required for Planning. Algeria. Note by Secy. 10 February 1941 Download PDF (221 KB)
67 Special Service Troops - Security. Note by Secy. 11 February 1941 Download PDF (795 KB)
68 Priority for C.S.D.I.C.(U.K.) Camps 10 and 20. Memo. By J.I.C. 11 February 1941 Download PDF (389 KB)
69 Casablanca: Situation At. Note by Secy. 12 February 1941 Download PDF (205 KB)
70 Possible German Action in the Mediterranean. (Not Proceeded with) 15 February 1941 Download PDF (268 KB)
71 Censorship in the U.S.A. Memo. By Director of Intelligence, Air Ministry 14 February 1941 Download PDF (235 KB)
72 Visit of the Portuguese Delegation to This Country. Note by Secy. 14 February 1941 Download PDF (418 KB)
73 Use of Cypher Telegrams by Foreign Missions in Certain Circumstances. Note by Secy. 17 February 1941 Download PDF (202 KB)
74 Rumours of a Military Nature Intended to Mystify or Mislead the Enemy. Note by Secy. 17 February 1941 Download PDF (915 KB)
75 The Defence of Rhodes by the German Air Force. Memo. By Air Ministry 18 February 1941 Download PDF (461 KB)
76 Security at Ports. Memo. By D.M.I. 20 February 1941 Download PDF (1.27 MB)
77 German Invasion of the British Isles. Note by Secy. 21 February 1941 Download PDF (275 KB)
78 United Kingdom: German Invasion of Report 23 February 1941 Download PDF (538 KB)
79 Intelligence Regarding the Results of Our Bombing Policy in Germany during the Last Six Months 23 February 1941 Download PDF (232 KB)
80 Prisoners of War. Note by Director of Prisoners of War 23 February 1941 Download PDF (755 KB)
81 Special Service Troops - Security. Note by Secy. 23 February 1941 Download PDF (1.66 MB)
82 Provision of Topographical Intelligence. Note by Secy. 24 February 1941 Download PDF (2.86 MB)
83 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 24 February 1941 Download PDF (1.09 MB)
84 Operation 'Ballast' - Cover and Security Measures. Note by Secy. 26 February 1941 Download PDF (549 KB)
85 German Attack on Greece. Note by Secy. 27 February 1941 Download PDF (194 KB)
86 Germans at Casablanca. Note by Secy. 2 March 1941 Download PDF (590 KB)
87 German Attack on Greece. Report by J.I.C. 2 March 1941 Download PDF (1.23 MB)
88 Supply of Intelligence in Certain Areas. Note by Secy. 3 March 1941 Download PDF (699 KB)
89 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 3 March 1941 Download PDF (1.10 MB)
90 German Action in the Mediterranean Area. Memo. By the J.I.C. 5 March 1941 Download PDF (956 KB)
91 Censorship in the U.S.A. Note by Secy. 4 March 1941 Download PDF (366 KB)
92 Development of Air Intelligence. Note by Secy. 5 March 1941 Download PDF (207 KB)
93 Provision of Topographical Intelligence. Note by Secy. 6 March 1941 Download PDF (317 KB)
94 Scale of Attack on Portugal. Note by Secy. 8 March 1941 Download PDF (927 KB)
95 Impending Operation by the Director of Combined Operations. Note by Secy. 8 March 1941 Download PDF (500 KB)
96 Scale of Attack on Portugal. Note by Secy. 10 March 1941 Download PDF (957 KB)
97 Rumours of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. 10 March 1941 Download PDF (894 KB)
98 Enemy Intelligence: Study of. Note by Secy. 12 March 1941 Download PDF (2.67 MB)
99 Security - Special Service Troops. Note by Secy. 12 March 1941 Download PDF (346 KB)
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