Soviets Begin Month-long Murder of Polish Prisoners, Known as the Katyn Massacre

After 3 April, 1940, at least 22,436 POWs and prisoners were executed: 15,131 POWs (most or all of them from the three camps) and at least 7,305 prisoners in western parts of Belarus and Ukraine. A 1956 memo from KGB chief Alexander Shelepin to First Secretary Nikita Khrushchev contains incomplete information about the personal files of 21,857 murdered POWs and prisoners. Of them 4,421 were from Kozielsk, 3,820 from Starobielsk, 6,311 from Ostashkov, and 7,305 from Belarusian and Ukrainian prisons. Shelepin's data for prisons should be considered a minimum, because his data for POWs is incomplete (he mentions 14,552 personal files for POWs, while at least 15,131 POWs "sent to NKVD" are mentioned in contemporary documents).

Those who died at Katyn included an admiral, two generals, 24 colonels, 79 lieutenant colonels, 258 majors, 654 captains, 17 naval captains, 3,420 NCOs, seven chaplains, three landowners, a prince, 43 officials, 85 privates, and 131 refugees. Also among the dead were 20 university professors (including Stefan Kaczmarz); 300 physicians; several hundred lawyers, engineers, and teachers; and more than 100 writers and journalists as well as about 200 pilots. In all, the NKVD executed almost half the Polish officer corps. Altogether, during the massacre the NKVD murdered 14 Polish generals: Leon Billewicz (ret.), Bronisław Bohatyrewicz (ret.), Xawery Czernicki (admiral), Stanisław Haller (ret.), Aleksander Kowalewski (ret.), Henryk Minkiewicz (ret.), Kazimierz Orlik-Łukoski, Konstanty Plisowski (ret.), Rudolf Prich (murdered in Lviv), Franciszek Sikorski (ret.), Leonard Skierski (ret.), Piotr Skuratowicz, Mieczysław Smorawiński and Alojzy Wir-Konas (promoted posthumously). A mere 395 prisoners were saved from the slaughter, among them Stanisław Swianiewicz and Józef Czapski. They were taken to the Yukhnov camp and then down to Gryazovets. They were the only ones who escaped death.

Up to 99% of the remaining prisoners were subsequently murdered...

According to data in the possession of the Polish government-in-exile, in early 1940 the Soviet Union held as many as 15,000 Polish prisoners of war, of whom 8,300 were officers. Taken prisoner by the Red Army in the second half of September 1939, they were interned in three camps: Kozelsk, Starobelsk, and Ostaszkow. Late that year, there were reports that the three camps had been disbanded. In 1941 and 1942, the Polish government-in-exile repeatedly asked the Soviet Union for information on the prisoners’ fate, but to no avail.