A volume of reports, memoranda and correspondence from 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. The JIC members discussed a vast range of international and domestic issues in their meetings. In this file, subjects documented include the organisation of the intelligence services; reports on air warfare and the effects of bombing in the Spanish Civil War; the military strength and mobilisation capabilities of the major nations; estimates of the potential scale of German air attacks on the United Kingdom; a report of the interrogation of a German spy caught entering England; and possible Spanish territorial concessions to Italy in exchange for assistance to Franco's Nationalists during the Spanish Civil War.