Soviet–Japanese border conflicts

Soviet–Japanese border conflicts
	Part of the interwar period (until 1939) and World War II
	; Japanese light tanks during the Battles of Khalkhin Gol
Date	1 March 1932 – 16 September 1939; (7 years, 6 months, 2 weeks and 1 day)
Location	Northeast Asia (Mongolia, Primorsky Krai, Manchuria)47°43′49″N 118°35′24″E / 47.7303°N 118.5900°E
Result	Soviet–Mongolian victory
Belligerents
Soviet Union; Mongolia	Japan Manchukuo;
Commanders and leaders
Joseph Stalin; Georgy Zhukov; Grigory Shtern; Nikolai Berzarin; Yakov Smushkevich; Vasily Blyukher ; Khorloogiin Choibalsan; Bataar Enkhjargal †; Jaija Bataar †	Emperor Hirohito; Kenkichi Ueda; Yoshijirō Umezu; Rensuke Isogai; Michitaro Komatsubara; Kōtoku Satō; Masaomi Yasuoka; Kamezō Suetaka; Mihara Kanae; Urzhin Garmaev
Casualties and losses
Total: 30,443–32,418; 29,766–31,290; 677–1,128; Material losses:; 350 tanks destroyed; 140 armoured cars destroyed; 211 aircraft destroyed;	Total: 24,095–26,011; 21,190–23,106; 2,905; Material losses:; 43 tanks destroyed; several tankettes destroyed; 162 aircraft destroyed;

The Soviet–Japanese border conflicts were a series of minor and major conflicts fought between the Soviet Union (led by Joseph Stalin), Mongolia (led by Khorloogiin Choibalsan) and Japan (led by Hirohito) in Northeast Asia from 1932 to 1939.

The Japanese expansion in Northeast China created a common border between Japanese-occupied Manchuria and the Soviet Far East. This led to growing tensions with the Soviet Union, with both sides often engaging in border violations and accusing the other of doing so. The Soviets and Japanese, including their respective client states of Mongolia and Manchukuo, fought in a series of escalating small border skirmishes and punitive expeditions from 1935 until Soviet-Mongolian victory over the Japanese in the 1939 Battles of Khalkhin Gol, which resolved the dispute and returned the borders to status quo ante bellum.

The Soviet–Japanese border conflicts heavily contributed to the signing of the Soviet–Japanese Neutrality Pact in 1941.