Includes: report by JEP, with photographs and maps, on routes across the Qattara Depression (1942); memoranda by JEP on the threat to the Empire from Japan, the United States, Germany and the Soviet Union (1942), conditions for an armistice with Germany (1943) and conditions of victory in 1943 (1942).

Also includes: correspondence with Sir Basil Liddell Hart (1968), on borrowing the papers, and also on the modern threat from the Soviet Union's submarine fleet.