Soviet-Japanese Border Wars

The Soviet Union under Stalin

Russia 1939.0822

Soviet-Japanese Border Wars

The Soviet Union under Stalin (22 August 1939)

Historical Map of Russia & the former Soviet Union

The late 1930s saw international stability further deteriorate, with a Japanese invasion of China followed by the German seizure of Austria and Czechoslovakia. Japan's expansionism brought it into direct conflict with the Soviet Union. In July and August 1938, and again from May to September 1939, the Japanese were beaten back in undeclared border wars with Soviet and Mongolian troops.

Main Events

Kazakh Soviet Socialist Republic

Upon the adoption of the 1936 Soviet Constitution, the Kazakh Autonomous Soviet Socialist Republic within the Russian RSFSR becomes the Kazakh Soviet Socialist Republic, a separate constituent republic of the Union of Soviet Socialist Republics.

Dissolution of Transcaucasian SFSR

With the adoption of the 1936 Soviet Constitution, the Transcaucasian Socialist Federative Soviet Republic is dissolved and succeeded by the Armenian, Azerbaidzhan, and Georgian Soviet Socialist Republics.

Kirghiz Soviet Socialist Republic

With the adoption of the 1936 Soviet Constitution, the Kara-Kirghiz Autonomous Oblast of the Russian SFSR becomes the Kirghiz Soviet Socialist Republic, a separate constituent republic of the Union of Soviet Socialist Republics.

Japanese invasion of China

On the night of July 7, Chinese and Japanese troops exchange fire in the vicinity of the Marco Polo bridge, an important access route to Beiping (Beijing). The confused skirmish escalates into a full-scale battle in which Beiping and Tianjin fall to Japanese forces, and marks the outbreak of the Second Sino-Japanese War.

Battle of Lake Khasan

Border clash between Japanese troops in Manchukuo and Soviet Union

Occupation of the Sudetenland

Franco declares end of Spanish Civil War

Battles of Khalkhin Gol

Border clashes between Japanese troops in Manchukuo and Soviet Union, culminating in Japanese defeat at Nomonhan

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