26 (b) Joint appreciations of possible enemy operations from the Intelligence point of view, e.g. Japanese operations against Hong Kong and Singapore. (c) Press liaison and security in combined exercises. (d) A.A. Defences of foreign countries. (c) Coastal Defences of foreign countries. (f) Intelligence from Procedure Y. (g) Signal communications and developments. (h) Co-ordination of the work of the Intelligence Staffs of the three Services in special circumstances. (i) Questions involving the defence security service where the three Defence Departments are concerned.