This article follows an earlier essay 'Zdrzenlivy internacionalismus (the Restrained Internationalism)' by the late Balkanist Pavel Hradecny which analysed Czechoslovak material aid to the Greek communist partisans after the end of WWII. The new essay, supported by archival resources of predominantly Czech origin, aims at certain 'lateral', hitherto unknown aspects of the Czechoslovak involvement in the Greek civil war and immediately after its end when 12,000 Greek immigrants found refuge in Czechoslovakia. The second chapter explains the role of Czechoslovak security services during establishment and operation of the so-called diversionists' school of Greek communists in Moravia in the critical 'Cold-War' period of 1950-1951. The third chapter reconstructs Czechoslovak participation in the subsequent illegal missions taken by the Communist Party of Greece (KKE) in the 'monarch-Fascist' Greece. The final fourth chapter clarifies the role of Czechoslovak repressive organs in purges of the Greek communist leaders against 'unreliable elements' that were active within the Greek emigres in Czechoslovakia.