In September 1939, only a few weeks after the signature of the Nazi–Soviet non-aggression pact, the British government made perhaps its strongest effort since the Bolshevik revolution to achieve a rapproachement with the Soviet Union. This effort was interrupted and almost ruined by the Finno-Soviet ‘Winter War’, but the British initiative resumed after the war ended in March 1940. The Soviet government, though not the Soviet ambassador in London, Ivan M. Maiskii, was cool to British overtures, thus reversing the inter-war pattern where Moscow had often been the first to ask for better Anglo-Soviet relations. The publication of many Soviet diplomatic papers permits a comparison between Soviet and British accounts of important diplomatic meetings, a comparison which illustrates both British and Soviet foreign policy during the early months of the Second World War.