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

1940 - 1941 - Deportations of Poles to USSR

1940 - 1941 - Deportations of Poles to USSR , 1944 - 1947 - Population Transfers from the Ukrainian - Polish Borderlands, 1945 - 1946 Resettlement of Poles in the "Regained lands" , 8. 5. 1945 - End of WWII

17.9.1939 - Soviet invasion of Poland , 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 20. 6. - 29. 8. 1944 - Operation Bagration

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

1940 Katyn massacre, 1943 - Conflict between Poles and Ukrainians in Eastern Galicia and Volhynia, 1945 - 1946 Resettlement of Poles in the "Regained lands"

1. 9. 1939 - The outbreak of the WW2

22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 1945 - 1946 Resettlement of Poles in the "Regained lands"

1945 - 1946 Resettlement of Poles in the "Regained lands"

15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 1945 - 1947 Expulsion of Germans from former German East territories, March 1945 - the occupation of Upper Silesia by the Soviet army and 4 more anniversaries