The mass murder of 22,000 Poles by the Soviet NKVD at Katyn is one of themost shocking events of the Second World War and its political implicationsare still being felt today. Information surrounding Katyn came to lightwith Russian perestroika, which made it possible to disclose a key documentindicating the circumstances of the massacre. The bitter dispute is
ongoingbetween the Russian and Polish governments, to declassify the rest of thedocuments and concede to genocide perpetrated by the Soviets. British "MostSecret" files reveal that Katyn was considered as a provocative incident,which might break political alliance with the Soviets. The "suspension ofjudgment" policy of the British government hid for more than half a centurya deceitful diplomacy of Machiavellian proportions. Katyn 1940 draws onintelligence reports, previously unpublished documents, witness statements,memoranda, and briefing papers of diplomats and civil servants of variousechelons, who dealt with the Katyn massacre up to the present day to exposethe true hypocrisy of the British and American attitude to the massacre.