Japan일본
~500,000 Zainichi Koreans
- 1920s
- Colonial-era labor migration to Japan begins at scale
- 1945
- Japan's defeat; ~600,000 Koreans remain
- 1952
- San Francisco Peace Treaty; loss of Japanese nationality
- 1965
- ROK–Japan normalization; Mindan-affiliated Koreans gain status path
Due to labor shortages in the 1920s, imperial Japan brought in a large influx of Korean workers. By 1945, over 2 million ethnic Koreans were residing in Japan — many having been conscripted or recruited from colonial Korea.
After Japan's defeat in World War II, the majority of these Koreans returned to the Korean Peninsula. However, around 600,000 Koreans remained, and they would come to be known as the Zainichi Koreans (재일동포).
In 1952, with the signing of the San Francisco Peace Treaty, Zainichi Koreans officially lost their Japanese nationality, rendering many effectively stateless. Excluded from Japanese corporations, civil service, and universities, many turned to small businesses — particularly yakiniku restaurants and pachinko parlors — to survive economically.
Over time, two major political groups emerged within the Zainichi community, deepening internal divisions:
재일본조선인총련합회 (Chongryon) – Aligned with North Korea, these members are typically registered under "Chosen-seki" and remain stateless to this day.
재일본대한민국민단 (Mindan) – Aligned with South Korea, these members were able to apply for South Korean citizenship, or later, naturalize as Japanese citizens after 1965.
Despite decades of discrimination and marginalization, the Zainichi Korean community produced powerful figures such as Son Masayoshi, founder of SoftBank, and Shin Kyuk-ho, founder of Lotte Group.
Their success stories reflect the resilience of Zainichi Koreans across generations, even as many still navigate complex questions of identity, citizenship, and belonging in Japanese society.
