1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 1945 - 1946 Resettlement of Poles in the "Regained lands"

Western Ukrainian lands within Poland 1919–1939, Ukrainian insurgent movement 1930–1950, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 1941-1944 - Nazi occupation of Ukraine and 2 more anniversaries

1945 - 1947 Expulsion of Germans from former German East territories, 7.10.1949 - Creation of the German Democratic Republic, 17.6.1953 - Uprising of 1953 in East Germany, 1989 - The fall of the iron curtain, 3.10.1990 - Reunification of Germany

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

17.9.1939 - Soviet invasion of Poland

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain, 1944 - 1949 Greek civil war, 28.10.194 - 23.4.1941 Greek- Italian war

1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 3.10.1990 - Reunification of Germany

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain, 31. 12. 1992 Dissolution of Czechoslovakia

2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine, The Revolution of Dignity (21.11. 2013 – 22.02. 2014), The Revolution on Granite in Ukraine. 2.10.1990 – 17.10.1990