Diary. Subjects covered include: relationships with Churchill, the War Cabinet, and the Foreign Office; Cadogan's role as an intermediary between Churchill and statesmen including Anthony Eden and Charles De Gaulle; Cadogan's involvement in overseas diplomatic visits; Turkey's relationship with the Allied powers and strained relations with the Soviet Union, including discussions with Ismet Inönü at the Adana Conference; the increasingly hostile relations between the Soviet Union and Poland and the discovery of the Katyn Massacre; discussions surrounding the Allied invasions of Italy and Sicily, including Operation Husky and interventions in Italian East Africa [later Eritrea, Ethiopia, Somalia]; Cadogan's involvement in the Quebec Conference, Cairo Conference, and Tehran Conference; initial preparations for Operation Overlord; Cadogan's view of the Churchill family's visit to Harvard to collect Churchill's honorary degree; Cadogan's opinion of Harold Laski's "Reflections on the Revolution of Our Time"; and comments on wartime affairs and events, including the increasingly heavy aerial bombardment of German cities and German bombing raids on London.