17.9.1939 - Soviet invasion of Poland

25. 2. 1948 - Communist coup d‘état in ČSR, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , 8. 5. 1945 - End of WWII and 2 more anniversaries

Western Ukrainian lands within Poland 1919–1939, Ukrainian insurgent movement 1930–1950, Deportations to the Far East, Siberia and North Kazachstan 1939–1941 and 1944–1950, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland and 6 more anniversaries

Western Ukrainian lands within Poland 1919–1939, Lviv in the times of the Second World War 1939-1945, 17.9.1939 - Soviet invasion of Poland , 1941-1944 - Nazi occupation of Ukraine, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass and 1 more anniversaries

Western Ukrainian lands within Poland 1919–1939, 1939 - 1941 - The first Soviet occupation of Galicia, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR

29. 8. 1944 - April 1945 - The Slovak National Uprising, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation and 3 more anniversaries

Western Ukrainian lands within Poland 1919–1939, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 30. 5. 1945 – 29. 10. 1946 - Withdrawal of Germans from Czechoslovakia, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR and 2 more anniversaries

Western Ukrainian lands within Poland 1919–1939, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 1941-1944 - Nazi occupation of Ukraine, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR and 1 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 30. 5. 1945 – 29. 10. 1946 - Withdrawal of Germans from Czechoslovakia, 26. 5. 1946 – The last “free” parliamentary election in Czechoslovakia, 17.9.1939 - Soviet invasion of Poland

8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , 8. 5. 1945 - End of WWII and 3 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 1940 - 1941 - Deportations of Poles to USSR