Suggestions of a Military Nature Intended to Mystify and Mislead the Enemy. Note by Secy. Circulating Memo. By Inter-Services Security Board

I.S.S.B. No. 60 (I) 9 Suggestions of a military nature intended to mystify and mislead the enemy. Memorandum by the Inter-Services Security Board. Serial No. Suggestion. Submitted Remarks of by I.S.S.B. 1. That our sources of intelligence and reconnaissance have improved Admiralty so much that we are fully informed of preparations being made for an enemy invasion. 2. That we have made great strides in improving the detection of -doaircraft by sound. 3. That our new A/S craft are fitted with improved and better -dodetection devices and carries very large depth charge armament.