Korea-Japan Historical Disputes
Guide to Korea-Japan historical disputes organized by category
Territorial Disputes
Dokdo/Takeshima Dispute — Complete Guide: History, Geography, International Law
Who discovered it first, which country is closer, who would win at ICJ?
Dokdo (Takeshima in Japan) is effectively controlled by Korea. Korea claims historical sovereignty from 512 AD; Japan claims legal incorporation in 1905. Physically 87km from Korea's Ulleungdo, 157km from Japan's Oki. Japan wants ICJ adjudication but Korea refuses — examining why and who would win.
What Is the Tsushima Sovereignty Debate? Claims and Current Status
From the Tsushima domain's trade with Joseon to the 1949 return demand
Tsushima currently belongs to Nagasaki Prefecture, Japan, but claims that it was historically under Korean influence are intermittently raised in Korea.
Historical Recognition
Comfort Women
What Is the Comfort Women Issue? The Kono Statement and 2015 Deal
Wartime sexual slavery and compensation issues
A dispute over human rights of comfort women forcibly mobilized by the Japanese military during WWII, and Japan's apology and compensation.
Japanese Military Massacre of Korean Comfort Women — First Video Evidence Discovered
1944 Yunnan Tengchong — The meaning of 19 seconds filmed by US-China allied forces
In 2018, a Seoul City and Seoul National University research team discovered 19 seconds of footage from NARA showing the 1944 Japanese military massacre of Korean comfort women — the first visual evidence supporting existing allied military documents.
Korea's Comfort Women Distortion Bills: What They Are and the Debate
Can historical distortion be punished by law? — Clash between freedom of expression and victim protection
Analyzes the background, pros and cons, and comparable foreign legislation regarding proposed laws to punish distortion of comfort women history.
Forced Labor
Forced Labor Compensation: The 2018 Ruling vs the 1965 Treaty
Legal and diplomatic dispute over compensation for wartime forced laborers
A diplomatic conflict between Korea and Japan over compensation lawsuits filed by wartime forced labor victims against Japanese companies.
Sado Mine Korean Forced Labor — UNESCO World Heritage Controversy
Can World Heritage listing coexist with acknowledging forced labor history?
Japan's Sado Mine in Niigata was inscribed as a UNESCO World Heritage Site in 2024. Korea protested that Korean forced labor history was insufficiently reflected, while Japan tried to separate modern history by framing it as an "Edo period (~1868) heritage."
Colonial Rule Debates
Japan-Korea Annexation — Legal or Illegal?
Debate over the legal validity of the 1910 annexation treaty and the nature of colonial rule
Examines the conflicting positions of Korea and Japan on whether the 1910 annexation treaty was a legitimate procedure under international law or an invalid treaty made under coercion.
Nationality of Koreans During Japanese Rule
Were Koreans Japanese nationals? — The contradiction between legal status and discrimination
Analyzes the perception gap between Korea and Japan regarding the contradictory status of Koreans who were legally Japanese nationals but practically treated as second-class citizens.
Japanese Colonial Rice Exploitation — Reality of the Rice Production Plan
"Rice exploitation" or "modern agricultural development"? — Korean vs Japanese interpretation
The Rice Production Increase Plan (1920-1934) under Japanese colonial rule. Korea views it as rice exploitation; some in Japan frame it as modern agricultural investment. Production increased but per-capita consumption actually decreased.
Emperor Gojong — Pioneer of Modernization or Ruler Who Lost the Nation?
A figure whose evaluation dramatically differs across Korean, Japanese, and Western academia
Emperor Gojong of the Korean Empire (r. 1863-1907) is viewed as a "tragic monarch who tried to protect sovereignty amid great powers" in Korea, while Japan's dominant view is "an incompetent ruler who ruined his nation." What was he actually like? Perspectives and historical facts examined.
Empress Myeongseong Assassination — Korean and Japanese Perspectives on the Eulmi Incident
1895 assassination of the queen in Gyeongbokgung led by the Japanese minister — Korea's "murder of the national mother," Japan's silence
On October 8, 1895, Japanese Minister Miura Goro led an incursion into Gyeongbokgung Palace, assassinating Empress Myeongseong and burning her body. Korea considers this one of its most humiliating events — "murder of the national mother" — but Japanese textbooks barely cover it.
Ahn Jung-geun — Independence Hero or Terrorist?
Korea's "righteous fighter," Japan's "assassin" — opposite evaluations of the same person
On October 26, 1909, Ahn Jung-geun assassinated Ito Hirobumi at Harbin Station. In Korea, he's the greatest independence hero; in Japan, a terrorist who killed the first PM. Yet Ahn himself was also a thinker who advocated "Eastern Peace Theory."
Pacific War
Why Did Pearl Harbor Happen — Korean vs Japanese Historical Perspective
Same event, different interpretation — war of aggression or self-defense?
December 7, 1941 Pearl Harbor attack. Korea views it as reckless expansion of Japanese aggression, while some in Japan frame it as self-defense against the ABCD encirclement. Key background and bilateral perspective differences.
Pearl Harbor — Did Japan Declare War?
Truth behind the delayed declaration and whether allies were notified
Japan planned to deliver the declaration (ultimatum) 30 minutes before the attack, but typing delays at the Japanese Embassy in Washington caused delivery after the attack. Axis allies Germany and Italy were not notified in advance.
Nanjing Massacre — 300,000 vs Denial, KR-CN-JP Perspectives
December 1937: Mass murder and rape after Japanese military occupation of Nanjing
After the Japanese military occupied China's capital Nanjing in December 1937, approximately 6 weeks of mass murder, rape, and looting. China claims 300,000 killed; some in Japan deny the event or minimize the scale.
Unit 731 Human Experimentation — War Crime Buried in Darkness
Japanese military biological weapons development and human experiments in Manchuria
Unit 731 (Kwantung Army Epidemic Prevention and Water Purification Department) conducted human experiments on POWs and civilians in Harbin, Manchuria. Subjects included Chinese, Korean, and Russian victims. Post-war US immunity deals in exchange for experiment data remain controversial.
Diplomatic Conflicts
The 2019 Korea-Japan Trade Dispute: Three Chip Materials and the Whitelist
Japan's export restrictions on Korea and economic retaliation controversy
In 2019, Japan restricted exports of three key semiconductor materials to Korea and removed Korea from its whitelist.
The 2019 GSOMIA Crisis: How a Trade Dispute Reached Security
Notification and withdrawal of Korea-Japan GSOMIA termination
In response to Japan's export restrictions in 2019, Korea notified GSOMIA termination but later withdrew it.
The Rising Sun Flag Debate: Militarist Symbol or Traditional Design?
Korea-Japan conflict over the use of the Rising Sun Flag
Korea views the Rising Sun Flag as a symbol of Japanese militarism, while Japan claims it is part of traditional culture.
Yasukuni Shrine Visits — Mourning or War Glorification?
Class-A war criminal enshrinement, Yushukan museum's historical view, and separation debate
Yasukuni Shrine enshrines war dead since the Meiji era. When 14 Class-A war criminals were secretly enshrined in 1978, it became a core diplomatic conflict with Korea and China. Even within Japan, PM visits remain perpetually controversial.
Cultural Disputes
Naming & Script
East Sea vs Sea of Japan: Each Side's Case and the 2020 IHO Decision
International dispute over the name of the sea between Korea and Japan
An international naming dispute where Korea advocates "East Sea" and Japan advocates "Sea of Japan" as the official name.
Korea's Kanji Abolition vs Japan's Kanji Preservation
Why Korea abandoned kanji and Japan kept it — linguistic and political analysis
Compares Korea's kanji abolition and Japan's preservation, analyzing linguistic structural differences, modernization processes, and political backgrounds.