milkmaid that Polishness equals subhumanity. Poles, Jews and Gypsies are on the same inferior level... This should be brought home as a leitmotiv, and from time to time, in the form of existing concepts such as 'Polish economy', 'Polish ruin' and so on, until everyone in Germany sees every Pole, whether farm worker or intellectual, as vermin." Historian Karol Karski writes that before World War II the Soviet authorities carried out a discreditation campaign against the Poles and describes Stalin as Polonophobe. During World War II Poles became the subject of ethnic cleansing on an unprecedented scale, including: Nazi German genocide in General Government, Soviet executions and mass deportations to Siberia from Kresy, as well as massacres of Poles in Volhynia, a campaign of ethnic cleansing carried out in today's western Ukraine by Ukrainian nationalists. Among the 100,000 people murdered in the Intelligenzaktion operations in 1939–1940, approximately 61,000 were members of the Polish intelligentsia. Millions of citizens of Poland, both ethnic Poles and Jews, died in German concentration camps such as Auschwitz. Unknown numbers perished in Soviet "gulags" and political prisons. Reprisals against partisan activities were brutal; on one occasion 1,200 Poles were murdered in retaliation for the death of one German officer and two German officials. In August 2009 the Polish Institute of National Remembrance (IPN) researchers estimated Poland's dead (including Polish Jews) at between 5.47 and 5.67 million (due to German actions) and 150,000 (due to Soviet), or around 5.62 and 5.82 million total. Soviet policy following their 1939 invasion of Poland in World War II was ruthless, and sometimes coordinated with the Nazis (see: Gestapo-NKVD Conferences). Elements of ethnic cleansing included Soviet mass executions of Polish prisoners of war in the Katyn Massacre and at other sites, and the exile of up to 1.5 million Polish citizens, including the intelligentsia, academics, priests and Jewish Poles to forced-labor camps in Siberia. In German and Soviet war propaganda, Poles were mocked as inept for their military techniques in fighting the war. Nazi fake newsreels and forged pseudo-documentaries claimed that the Polish cavalry "bravely but futilely" charged German tanks in 1939, and that the Polish Air Force was wiped out on the ground on the opening day of the war. Neither tale was true (see: Myths of the Polish September Campaign). German propaganda staged a Polish cavalry charge in their 1941 reel called "Geschwader Lützow". Ukrainian and Lithuanian nationalists utilized