40% of the (6 million Jews who perished in the Holocaust) were citizens of the former Soviet Union.
In recent years, Poland promoted its historical narratives in a way which does not allow any opposing views. Poland is ruthless in the presentation of its vision of history and it does not see any possibilities for a civilized discussion on historical issues.
In the statement of 21 December 2019, Polish authorities reiterated their openness to continue the historical dialogue with Russia, for example through the restart of the work of the bilateral Group on Difficult Issues. However, they stated, the recent words of President Putin regarding Polish history have ruined the outcomes of cooperation of the Polish and Russian historians, who tried to look for the ways of reconciliation in the Polish-Russian relations.
The Polish Institute of Historical Remembrance stated that the documents published recently by Russia, relating to the World War II, are selective, and it called upon Russia to declassify its archives regarding WWII and the post-war presence of the Soviet troops in Poland.
See other examples of the Russian historical revisionism concerning this Poland - Signing of the Molotov-Ribbentrop pact thwarted the UK’s expansionist plans in Europe, The Molotov-Ribbentrop pact did not violate the rights of the Polish state, The shift of all blame for WWII outbreak at the Ribbentrop-Molotov pact the best example of manipulation of history.