Ukraine

5. 1. - 21. 8. 1968 - The Prague Spring, 26 April 1986 - Chernobyl disaster, Dissolution of the Soviet Union, Ukraine in 1990-s., The Orange Revolution of 2004 and 1 more anniversaries

22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , 8. 5. 1945 - End of WWII, Western Ukrainian lands within Poland 1919–1939, 1941-1944 - Nazi occupation of Ukraine and 2 more anniversaries

22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , Western Ukrainian lands within Poland 1919–1939, 1941-1944 - Nazi occupation of Ukraine, Ukrainian insurgent movement 1930–1950 and 3 more anniversaries

Ukraine in 1986–1991, Arrests in Western Ukraine 1949-1950, 2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine

1941-1944 - Nazi occupation of Ukraine, 1944 - 1945 - The liberation of Czechoslovakia

Ukraine in 1986–1991

1944 - 1947 - Population Transfers from the Ukrainian - Polish Borderlands

Western Ukrainian lands within Poland 1919–1939, 1941-1944 - Nazi occupation of Ukraine

25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

2022 - full scale invasion of Russia into Ukraine