22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR

15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia, 1941 - 1945 - Transports to the concentration camps and 3 more anniversaries

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, 8. 3. 1943 - The battle of Sokolovo, 1. – 2. 1. 1944 - Battle of Biela Cerkov and 2 more anniversaries

8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 25. 2. 1948 - Communist coup d‘état in ČSR, 30. 5. 1945 – 29. 10. 1946 - Withdrawal of Germans from Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 1944 - 1945 - The liberation of Czechoslovakia and 3 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR

29. 8. 1944 - April 1945 - The Slovak National Uprising, 15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia and 3 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 1944 - 1945 - The liberation of Czechoslovakia, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 21. 8. 1968 - Invasion of the Warsaw Pact troops

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

29. 8. 1944 - April 1945 - The Slovak National Uprising, 1. 9. 1939 - The outbreak of the WW2, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 29. 6. 1945 – Withdrawal from the Carpatho-Russia in favour of the USSR, 2.11.1938 - First Vienna Award (Hungarian annexation of Carpathian Ruthenia and South Slovakia)

1. 9. 1939 - The outbreak of the WW2, 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

1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation