In the interwar period Soviet Ukraine became a focus of attention for Polish diplomacy and intelligence services. They had many convenient observation points there. At the beginning of the 1920s they used for that purpose the Diplomatic Legation, and later two Consulates of the Polish Republic: in Kharkov and Kiev. Polish observers paid special attention to the evolution of Bolsheviks’ ethnic policy. Initially, great hope rose together with the quasi-autonomic status of Soviet Ukraine and its possible becoming independent of Russia, but after 1923 it was connected rather with the so-called Ukrainisation policy carried out in the Ukrainion SSR. There was full awareness in Warsaw that the Ukrainisation program is in the Soviet authorities’ in...