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| Japanese-occupied Korea | |
|---|---|
| Conventional long name | Korea under Japanese rule |
| Common name | Korea (1910–1945) |
| Status | Colony of the Empire of Japan |
| Empire | Empire of Japan |
| Era | Imperialism, World War II |
| Event start | Japan–Korea Treaty of 1910 |
| Year start | 1910 |
| Event end | Surrender of Japan |
| Year end | 1945 |
| Capital | Seoul |
| Common languages | Japanese language, Korean language |
| Leader1 | Emperor Meiji |
| Leader2 | Emperor Hirohito |
| Title leader | Emperor of Japan |
Japanese-occupied Korea was the period of rule by the Empire of Japan over the Korean Peninsula from formal annexation in 1910 until Japan’s defeat in 1945. This era followed unequal treaties, military interventions, and diplomatic maneuvers involving the Meiji Restoration, the First Sino-Japanese War, and the Russo-Japanese War, and it reshaped regional alignments involving Qing dynasty China, the Empire of Russia, and later United States and Soviet Union policies.
The opening of Korea began with the Japan–Korea Treaty of 1876 following influence from the Meiji Restoration and precedents set by the Opium Wars and Treaty of Ganghwa, which led to increased Japanese presence alongside Great Power politics involving the United Kingdom, France, and United States. Tensions culminated in the First Sino-Japanese War (1894–1895), the Treaty of Shimonoseki, and the formation of a Japanese Resident-General post after the Korean Empire proclamation by Gojong of Korea. The Russo-Japanese War (1904–1905) secured Japanese predominance and produced the Eulsa Treaty (1905) and the Japan–Korea Treaty of 1910, engineered by figures such as Ito Hirobumi and resisted by members of the Korean royal family and the Korean independence movement.
After annexation, the Government-General of Korea was established under the Governor-General of Korea, with administrators like Terauchi Masatake and Sōsuke Ito, implementing policies reflecting Imperial Japanese Army and Imperial Japanese Navy interests and modeled on colonial precedents in Taiwan and Karafuto Prefecture. Legal measures invoked instruments such as the Peace Preservation Law and administrative structures tied to the Ministry of Home Affairs (Japan), the Ministry of Colonial Affairs (Japan), and bureaucrats from Tokyo. The administration worked with Japanese firms like Nippon Steel and investors connected to zaibatsu such as Mitsubishi and Mitsui, while policing drew on units related to the Kenpeitai and judicial reforms influenced by Meiji Constitution precedents.
Japanese rule emphasized resource extraction and infrastructure linking via projects including railways built by entities like the South Manchuria Railway and investments by Mitsubishi and Sumitomo. Agricultural policies involved land surveys influenced by Land Tax Reform precedents and export of commodities to the Japanese Empire markets; industries in Pyongyang, Busan, and Seoul expanded with factories producing textiles, chemicals, and steel tied to firms such as Nippon Steel. Colonial economic strategy connected to the Greater East Asia Co-Prosperity Sphere and wartime mobilization for Second Sino-Japanese War and Pacific War needs, while financial oversight referenced institutions like the Bank of Joseon.
Cultural policy promoted assimilation through measures modeled on Imperial Rescript on Education, language policies privileging Japanese language, and institutions like the Keijo Imperial University. Education systems restructured schools and curricula drawing on officials from Ministry of Education (Japan), while cultural campaigns involved Shinto shrine worship centered on State Shinto and participation in rituals tied to Yasukuni Shrine conceptions. Intellectual life saw censorship enforced by agencies resembling the Special Higher Police and cultural productions monitored alongside works by Natsume Sōseki and Korean writers in Korea Artista Proleta Federatio debates. These policies affected elites such as members of the Yangban class and religious communities including Catholic Church in Korea and Cheondoism adherents.
Resistance included diplomatic and armed efforts like delegations to the Paris Peace Conference and the proclamation of the Provisional Government of the Republic of Korea in Shanghai led by figures such as Syngman Rhee, Kim Gu, and Ahn Changho. Armed uprisings encompassed the March 1st Movement with leaders such as Yu Gwan-sun, guerrilla campaigns by Korean independence fighters allied with groups in Manchuria and the Soviet Far East, and collaborations with entities like the Korean Liberation Army and international actors during World War II. Korean activists interacted with organizations including the Comintern, Chinese Nationalist Party, and various diaspora communities in United States and Russia.
Colonial policies produced demographic shifts via migration to Manchuria, labor conscription to work in Japan and occupied territories, and forced labor connected to wartime mobilization and enterprises such as Nippon Steel. Urbanization accelerated in cities like Seoul and Pyongyang, while health and public works projects altered population patterns as did famines and epidemics shaped by wartime shortages and imperial requisitioning. Social stratification transformed with the rise of industrial working classes engaged in strikes and unions, interactions with transnational movements in Shanghai and Vladivostok, and the displacement of rural elites including members of the Yangban.
After the Surrender of Japan, occupation zones established by the United States Army Military Government in Korea and Soviet Civil Administration led to the division of the peninsula at the 38th parallel, eventually producing the Republic of Korea and the Democratic People's Republic of Korea and culminating in the Korean War. Debates over collaboration, such as cases involving pro-Japanese officials and companies like Mitsubishi, continue alongside legal and diplomatic disputes addressing forced labor and the Comfort women issue. Historical memory engages institutions like the National Museum of Korean Contemporary History, litigation in courts including the Supreme Court of Japan, and scholarly work referencing archives from United States National Archives and Russian State Archive. Regional geopolitics involving China–Japan relations, Japan–South Korea relations, and United States–Korea relations reflect ongoing legacies of the colonial period.