On September 22, 1939, during the World War II, Soviet and German units held a joint military parade in Brest on the territory of defeated and occupied Poland. The issue of the joint division of Poland was actually resolved in August 1939, when Germany and the USSR signed the Molotov-Ribbentrop Pact. The German army invaded Polish territory on September 1, 1939, and the Soviet army invaded on September 17. In Soviet historiography, the reason for the invasion was called "the reunification of the fraternal peoples of Ukraine and Belarus" — Poland at that time included modern Ukrainian and Belarusian territories. Similar rhetoric is followed by the modern leadership of Russia. On the anniversary of the invasion, September 17, the Ministry of Foreign Affairs of the Russian Federation called this aggression a "liberation campaign" and did not mention the cooperation between Germany and the USSR at the beginning of World War II. "Babel" in 15 archival photos reminds you how the Soviet Union and Germany occupied Poland, how they held their most famous joint military parade and how the NKVD bodies shot tens of thousands of captured Poles in Katyn.