1939-1945 1940 atrocities attitudes excavations(archaeology) executionsites geopolitics history katynmassacre katynʹ krijgsgevangenen massamoorden nationalsecurity navo polen(volk) politicalaspects politicians politicsandgovernment politiekecommunicatie publicopinion publicopinionnorthatlantictreatyorganization publiekeopinie rhetoric russia russia(federation) worldwar