The Fourth Republic of Korea refers to the period of South Korean government from 27 October 1972 to 27 February 1981, during which the nation operated under the Yushin Constitution promulgated by President Park Chung‑hee. It succeeded the Third Republic and preceded the Fifth Republic.
Key characteristics
| Aspect | Details |
|---|---|
| Constitutional framework | The Yushin Constitution dramatically expanded presidential powers, allowing indefinite re‑election, direct control over the legislature, and the ability to appoint a large proportion of National Assembly members. |
| President | Park Chung‑hee (1972–1979) – assassinated on 26 October 1979. Followed by a brief interim presidency of Choi Kyu‑ha (acting) and then Chun Doo‑hwan, who assumed control after the December 1979 coup and formally became president in 1980. |
| Political climate | Marked by authoritarian rule, suppression of dissent, and extensive censorship. Opposition parties were limited, and the regime employed the Korean Central Intelligence Agency (KCIA) to monitor and detain political opponents. |
| Economic policies | Continuation and intensification of state‑directed industrialization, emphasizing heavy and chemical industries (the “Heavy‑Chemical Development Plan”). The period saw rapid GDP growth despite political repression. |
| Significant events | • 1972: Adoption of the Yushin Constitution. • 1979: Assassination of Park Chung‑hee. • 1979–1980: Military coup led by Chun Doo‑hwan (December 12 Coup). • 1980: Gwangju Uprising – a large‑scale protest in the city of Gwangju that was violently suppressed, resulting in hundreds of deaths. • 1981: Formal establishment of the Fifth Republic under a new constitution. |
| International relations | Maintained a strong alliance with the United States, received ongoing military and economic aid, and participated in United Nations activities. Relations with North Korea remained hostile, with occasional diplomatic overtures failing to produce lasting agreements. |
| Transition | The Fourth Republic ended with the adoption of a new constitution on 27 February 1981, which reduced presidential term limits and introduced limited electoral reforms, ushering in the Fifth Republic. |
Legacy
The Fourth Republic is frequently cited in Korean historiography as a period of rapid economic development combined with severe political repression. Its constitutional arrangements and the events surrounding its collapse, particularly the Gwangju Uprising, have had lasting influence on South Korea’s subsequent democratization movements and the framing of civil‑rights discourse.
