Editing Russian Far East (section)

===Soviet era===
Between 1937 and 1939, the Soviet Union under [[Joseph Stalin]] deported [[Koryo-saram|over 200,000 Koreans]] to [[Uzbekistan]] and [[Kazakhstan]], fearing that the Koreans might act as spies for Japan. Many Koreans died on the way in cattle trains due to starvation, illness, or freezing conditions. Soviet authorities purged and executed many community leaders; [[Koryo-saram]] were not allowed to travel outside of Central Asia for the next 15&nbsp;years. Koreans were also not allowed to use the Korean language and its use began to become lost with the involvement of the [[Koryo-mar]] dialect and the use of Russian.

Development of numerous remote locations in the Soviet Far East relied on [[Gulag]] [[labour camp]]s during Stalin's rule, especially in the region's northern half. After the death of Stalin in 1953 the large-scale use of [[forced labour]] waned and was superseded by volunteer employees attracted by relatively high wages.

====Soviet–Japanese conflicts====
{{Main|Soviet–Japanese border conflicts}}

During the [[Japanese invasion of Manchuria]] in 1931, the Soviets occupied [[Bolshoy Ussuriysky Island]], [[Yinlong Island]], and several adjacent islets to separate the city of [[Khabarovsk]] from the territory controlled by a possibly hostile power.<ref>The [[People's Republic of China]] recognized Russian possession of the eastern half of these lands in [[Complementary Agreement between the People's Republic of China and the Russian Federation on the Eastern Section of the China–Russia Boundary|the treaty of 2004]], whereas the western half then reverted to China.</ref>{{Better source needed|date=July 2023}}

Indeed, Japan turned its military attention to Soviet territories. Conflicts between the Japanese and the Soviets frequently happened on the border of Manchuria between 1938 and 1945. The first confrontation occurred in Primorsky Krai, the [[Battle of Lake Khasan]] (July–August 1938) involved an attempted military incursion of Japanese-controlled [[Manchukuo]] into territory claimed by the Soviet Union. This incursion was founded in the beliefs of the Japanese side that the Soviet Union had misinterpreted the demarcation of the boundary based on the 1860 [[Treaty of Peking]] between Imperial Russia and [[Manchu China]]. Primorsky Krai was always threatened by a Japanese invasion despite the fact that most of the remaining clashes occurred in Manchukuo.

The clashes ended shortly before and after the conclusion of [[World War II]] (see [[Soviet–Japanese War]]) when a war-weakened Japan found its territories of Manchukuo, [[Mengjiang]], [[Korea under Japanese rule|Korea]], and [[South Sakhalin]] [[Soviet invasion of Manchuria|invaded by Soviet and Mongolian troops]] (August 1945).

====World War II====
{{main|Pacific War|Soviet–Japanese War}}

Both the Soviet Union and Japan regarded the Primorsky Krai as a strategic location in World War II, and clashes over the territory were common. The Soviets and the other [[Allies of World War II|Allies]] considered it a key location for the planned [[Operation Downfall|invasion of Japan]] through Korea; Japan viewed it as a key location to begin a [[Hokushin-ron|mass invasion of Eastern Russia]]. The Primorsky Krai served as the Soviet Union's Pacific headquarters in the war to plan an invasion for allied troops of Korea in order to reach Japan.

After the Soviet invasion, the USSR returned Manchukuo and Mengjiang to China; [[Liberation of Korea|Korea became liberated]]. The Soviet Union also occupied and annexed Japan's [[Kuril Islands]] and southern Sakhalin. The planned Soviet invasion of Japan proper never happened.

====Cold War====
During the [[Korean War]], Primorsky Krai became the site of extreme security concern for the Soviet Union.

[[Vladivostok]] was the site of the [[Strategic Arms Limitation Talks]] in 1974. At the time, the Soviet Union and the United States decided quantitative limits on various nuclear weapons systems and banned the construction of new land-based [[intercontinental ballistic missile|ICBM]] launchers. Vladivostok and other cities in Primorsky Krai soon{{when|date=November 2020}} became [[closed cities]] because of the bases of the [[Soviet Pacific Fleet]].

Incursions of [[United States|American]] [[reconnaissance aircraft]] from [[Alaska]] sometimes happened. Concerns of the Soviet military caused the infamous [[Korean Air Lines Flight 007]] incident in 1983.