In December, South Koreans watched in disbelief as President Yoon Suk-yeol declared martial law, citing vague threats of “anti-state forces.” Within hours, legislators outmaneuvered military forces to nullify the decree. This extraordinary episode ended almost as quickly as it began, but it revealed the fragility at the heart of South Korea’s political system.
The dramatic reversal is being celebrated internationally as proof of democratic resilience. Yet beneath this apparent victory lies a more troubling reality: South Korean democracy remains deeply imperiled, caught in crosscurrents of extreme polarization, institutional weakness, and the lingering shadow of authoritarianism.
“Like many other democratic nations around the world, Korea has witnessed ‘democratic decay’ in recent years,” noted Stanford University professor Gi-Wook Shin, who has long warned of democratic backsliding in the country. The crisis reflects not just one leader’s overreach but deeper structural problems.
Political polarization has reached toxic levels, with parties treating opponents as enemies rather than legitimate rivals. The liberal Democratic Party and conservative People Power Party engage in winner-take-all politics, viewing compromise as capitulation. This atmosphere encourages extreme measures to neutralize political opponents, with each side accusing the other of existential threats to democracy.
The same polarization infects public discourse. Media echo chambers amplify partisan narratives, while the Korea Communications Standards Commission regularly blocks online content according to vaguely defined standards. In September 2023, regulators proposed a controversial “one strike” policy against outlets reporting “false information” – a measure critics denounced as threatening press freedom.
Meanwhile, the presidency retains excessive power – a legacy of South Korea’s authoritarian past. Despite democratic reforms, successive administrations have continued centralizing authority. As Choi Jang-jip, South Korea’s prominent theorist of democracy has argued, the country’s political system developed under unique circumstances that prevented the emergence of healthy class-based political representation seen in established Western democracies.
The December martial law episode demonstrated both democratic strength and weakness. While institutions ultimately prevailed, the fact that a democratically elected president would even attempt such a maneuver underscores how normalized anti-democratic impulses have become.
Corruption remains endemic, implicating leaders across the political spectrum. Lee Jae-myung, the Democratic Party’s standard-bearer, faces multiple indictments and was recently convicted of violating election laws. President Yoon, meanwhile, barely survived a December 7 impeachment vote following his martial law fiasco.
The country’s struggles extend beyond political institutions. Gender equality remains elusive, with South Korea maintaining the widest gender pay gap among OECD countries at 31 percent. Discrimination against minorities and migrants persists, while labor protections often fail to shield vulnerable workers from exploitation.
North Korea’s shadow further complicates democratic development. Successive administrations have used national security concerns to justify restrictions on civil liberties, from the notorious National Security Law to more recent measures targeting organizations that send information across the border.
South Korea’s democratic troubles represent a cautionary tale for democracies worldwide. As Professor Shin warns, “If such an event can happen in Korea – an advanced nation long regarded as an exemplary case of the ‘third wave’ of democratization – then it can happen anywhere.”
Yet there are reasons for hope. South Korean civil society demonstrated remarkable vigilance during both the 2016-17 Candlelight Movement and the recent martial law crisis. Ordinary citizens proved willing to defend democratic institutions when political elites failed them.
The path forward requires addressing the deeper causes of democratic decay, not just managing crises. South Korea needs to restore norms of forbearance and mutual toleration between political opponents, strengthen independent institutions, and confront endemic corruption. Most importantly, it must engage citizens in the process of democratic renewal.
After December’s democratic near-miss, South Koreans have received a stark reminder: democracy is not simply a set of institutions but a fragile practice requiring constant vigilance.
