Ukraine in 1990-s., The Ukrainian declaration of independence in 1991, The Annexation of Crimea (February 2014), 2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine

1932 - 1933 - Holodomor - Great famine in Ukraine, 26 April 1986 - Chernobyl disaster

1944 - 1949 Greek civil war

1. 9. 1939 - The outbreak of the WW2

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

5. 1. - 21. 8. 1968 - The Prague Spring, 1989 - The fall of the iron curtain

1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 1945 - 1947 Expulsion of Germans from former German East territories

Cuba after 1959