1940

Stalin carried out further purges of the Komi intellectual class

• Two Soviet bombers downed the Finnish passenger aeroplane "Kaleva" flying from Tallinn to Helsinki

• The order for total military blockade of Estonia was given to the Soviet Baltic Fleet

• The Soviet Union invaded Estonia

• 800 Estonian officers, i.e., about a half of the total were executed, arrested or starved to death in prison camps.

• President of Estonia, Konstantin Päts was arrested and deported by the Soviets to Ufa in Russia on 30 July, he died in a psychiatric hospital in Kalinin (now Tver) in Russia

• Katyn massacre, mass executions of Polish nationals carried out by the Soviet secret police

• Karelia annexed from Finland

• 8,627 "Foreigners" / "Other ethnicities" - Norwegian, Swede, Lithuanian & Latvian deported from Murmansk Oblast (Russia) to Karelo-Finnish SSR and Altai Krai (Russia)

• Leon Trotsky is assassinated in Mexico City

• 276,000 Poles (including refugees from Poland) deported from Western Ukrainian SSR, western Byelorussian SSR to Northern Russian SFSR, Ural, Siberia, Kazakh SSR, Uzbek SSR

• 1940-1991 Occupation and annexation of Estonia

• 1940-1991 Occupation and annexation of Latvia

• 1940-1991 Occupation and annexation of Lithuania. The Soviet annexation resulted in mass terror, the destruction of civil liberties, the economic system and Lithuanian culture.

• 1940-1953 More than 200,000 people are estimated to have been deported from the Baltic States by the Soviet regime

• 1940-1941 Lithuania. Thousands of Lithuanians were arrested and hundreds of political prisoners were arbitrarily executed. More than 17,000 people were deported to Siberia

• 1940-1951 The Soviet deportations of 400 000 people from Bessarabia and Northern Bukovina

• 1940-1991 Soviet occupation of Bessarabia and Northern Bukovina

• 1940-1944 Insurgency in Chechnya, Chechens and Ingush people

• 1939-1956 Polish resistance movement

• 1939-1941 1.45 million people inhabiting the region of Poland were deported by the Soviet regime

• 1939-1940 Soviet Union had attacked Finland, Winter War

• 1938-1953 Russia, Butovo firing range. Location where more than 20,000 political prisoners were shot during the Great Terror of the Soviet Union

• 1938-1941 Russia, Communarka shooting ground. Site of NKVD mass shootings, 10,000 people were killed and buried there

• 1937-1945 Second Sino-Japanese War

• 1937-1941 Belorus, Kurapaty. 250,000 people were executed during the Great Purge by the Soviet secret police, the NKVD.

• 1937-1941 Russia, Communarka shooting ground. NKVD mass shootings in the Novomoskovsky Administrative Okrug. 10,000 people were killed and buried there.

• 1932-1941 Conflicts with Japan

• 1930-1940 Mongolia and Soviet-supported Xinjiang Uyghurs and Kazakhs' separatist movement

• 1920-1940 Ukraine, Bykivnia Graves. During the Stalinist period in the Soviet Union, it was one of the unmarked mass grave sites where the NKVD, the Soviet secret police, disposed of thousands of executed "enemies of the Soviet state" The number of dead bodies buried there is estimated 225 000

• 1800-2001 Russia annexing Kingdom of Kartli-Kakheti (Eastern Georgia) and deposing the Bagratids

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