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, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR

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, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR

2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine

1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 8. 3. 1943 - The battle of Sokolovo, 3. - 6. 11. 1943 - Battle of Kiev

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 8. 5. 1945 - End of WWII, 5. 1. - 21. 8. 1968 - The Prague Spring, 1989 - The fall of the iron curtain

7. 11. 1917 - October Revolution in Russia, Deportations to the Far East, Siberia and North Kazachstan 1939–1941 and 1944–1950, 8 January 1941 - 27 January 1944 Siege of Leningrad, 8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

1989 - The fall of the iron curtain, 16. 12. 1989 - 24-25. 12. 1989 - The Romanian revolution

1951 - Deportation from Banat to Baragan (Romania), 16. 12. 1989 - 24-25. 12. 1989 - The Romanian revolution, 31. 12. 1992 Dissolution of Czechoslovakia

1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia