1939

The Soviet Union and Japan fight a border war at Nomonhan that leaves 18 thousand Japanese dead

• Molotov-Ribbentrop Pact (Nazi–Soviet Pact), the treaty included a secret protocol that divided territories of Romania, Poland, Lithuania, Latvia, Estonia and Finland into German and Soviet "spheres of influence"

• Invasion of Poland

• The Ingrian national district of Kuivaisi (Toksova) was liquidated

• Warships of the Red Navy appeared off Estonian ports, Soviet bombers began a threatening patrol over Tallinn and the nearby countryside. In light of the Orzeł incident, the Moscow press and radio started violently attacking Estonia as "hostile" to the Soviet Union. Moscow demanded that Estonia allow the USSR to establish military bases and station 25,000 troops on Estonian soil for the duration of the European war. The government of Estonia accepted the ultimatum signing the corresponding agreement on 28 September. 1939.

• 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.

• 9,000 Chinese, Harbin Russians deported from Southern Far East to Kazakh SSR, Uzbek SSR

• 1936-1939 Involvment in Spanish Civil War

• 1936-1939 2.5 million Soviet citizens are arrested and 700,000 are executed during the "great purges"

• 1936-1939 Mongolia. Stalinist repressions under the leadership of Khorloogiin Choibalsan by Russian instructions. All together, 2,265 monastery buildings were destroyed and over 71.5 tons of metal statutes shipped to the USSR for scrap. Between 22,000 and 35,000 people killed, or about three to four percent of Mongolia's population at that time. Nearly 18,000 victims were Buddhist lamas. Some authors also offer much higher estimates, up to 100,000 victims. Only from August 1937 to January 1938, according to the Soviet embassy in Mongolia, 10,728 people have been arrested including 7,814 lamas, 322 noyans, 180 army commanders and 408 Chinese. During this period, cases were heard on 7,171 people of whom 6,311 were executed. According to these data, the brunt of the repression was inflicted on Buddhist monasticism.

• 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

#19151964