During the Second World War , Mallaby was briefly deputy regional transport commissioner for the north-western region of England . Late in 1940 he became a general staff officer at the War Office , and in 1942 was posted to the Joint Planning Staff , becoming its secretary the next year . In this role he attended conferences of the Great Powers at Cairo ( November , 1943 ) , Quebec ( September , 1944 ) , and Potsdam ( July to August , 1945 )
Quebec
Second Quebec Conference
George Mallaby (public servant)