The notion of brotherhood has held particular significance in articulating the relationship between North and South Korea. Divided at the conclusion of the Second World War, the two Koreas have continued to engage in a form of self-reflexive contemplation—navel-gazing, in a sense—within the symbolic framework of brotherhood, especially from the vantage point of the South. In both popular and political imagination, the North has often been represented as a brother lost to tragedy or ensnared in a relentless rivalry.
During the 1980s, the South Korean student movement for democratization appropriated the North’s Juche ideology as an emblem of self-determination. To these students, the socialist principle of Juche, infused with the mythic image of Kim Il-sung as an anti-colonial resistance leader, appeared as a viable alternative to what they perceived as a parasitic, comprador capitalist order in the South—an order sustained by a small elite serving foreign, particularly American, interests. This interpretation drew emotional force from the belief that the two Koreas were blood brothers separated by the machinations of global superpowers. It provided the ideological foundation for a socialist nationalism that crystallized in the slogan “We are one,” so frequently invoked in the protest culture of the 1980s.
A few decades later, however, this imaginative construction of the North as the fraternal Other has markedly diminished. What, then, has emerged to occupy the space once animated by the figure of the brother?
Dividing the Korean peninsula approximately at its midpoint lies the Demilitarized Zone (DMZ). Established at the end of the Korean War as a buffer separating North and South, the DMZ stands not only as a symbol of ongoing conflict but also as one of the most enduring remnants of the Cold War. Park Chan-wook’s Joint Security Area (2000) unfolds within this heavily fortified landscape, dramatizing an improbable friendship between soldiers from both sides of the divide. Soo-hyuk, played by Lee Byung-hun, is a South Korean sergeant patrolling the southern side of the DMZ who, one night, inadvertently crosses the border to answer nature’s call and steps on a landmine. His North Korean counterpart, Kyung-pil (Song Kang-ho), saves him by deactivating the device. From that moment, Soo-hyuk begins making regular visits to Kyung-pil’s guard post, and an unlikely camaraderie blossoms.
This almost fairy-tale-like amity between Northern and Southern soldiers reflects an idealized vision of the two Koreas as sharing a single bloodline, culture, language, and history—an imagined unity disrupted only by politics, particularly those of international superpowers. Within their secret meetings, politics are suspended: they sing popular songs together, exchange gifts, and share snacks from the South. The film thus stages a hypothetical reality of what might have been—a Korea unburdened by war and division. In this melodramatic rendering of national unity, the North is imagined as a blood brother. Although not necessarily intended by the film’s writer or director, such imagery resonates deeply with the ethos of the 1980s, when the discourse of shared blood ties served as both a moral and ideological mandate for Korean reunification.
The Cracks Start to Appear
The romanticized notion of the North as a blood brother—separated and estranged by war—begins to show fissures in Taegukgi: The Brotherhood of War (2004), which reconfigures the idea of brotherhood through an intense fraternal narrative set amid the Korean War. Jin-tae, the family’s breadwinner struggling in the turbulent post-independence period, becomes entangled in the war alongside his younger brother, Jin-seok. Convinced that his brother has been conscripted by mistake, Jin-tae resolves to earn a military medal of valor, believing it will secure Jin-seok’s discharge and protect their family from further enlistment. He repeatedly risks his life on the battlefield in pursuit of this promise.
When Jin-tae learns that his brother has been killed in a massacre by anti-communist vigilantes, his grief transforms into fury and disillusionment. Feeling betrayed by the cause he once served, he defects to the North and becomes an almost mythical hero within the North Korean army. Here, the blood bond between the brothers is transposed directly onto the geopolitical axis dividing North and South, reinforcing the symbolic belief that the two Koreas, though divided by ideology, remain bound by shared blood. Yet Taegukgi also exposes the violence inherent in this very ideal: the myth of brotherhood turns into sacrifice, loss, and the fratricidal logic of war.
In the film’s final battle—modeled after the Battle of Bloody Ridge in 1951—Jin-tae, now wearing the uniform of the North Korean army, charges down the hill, his face blackened by gunpowder, firing and stabbing at anything in his path. He appears consumed by rage and despair, his humanity seemingly stripped away. This near-psychotic spectacle of fraternal devotion reduced to a subhuman state gestures toward the fragility of “blood ties” as a political metaphor for North–South relations.
In a moment of clarity, Jin-tae momentarily regains his senses when he sees his younger brother, Jin-seok, who was not in fact killed, and has volunteered for the battlefield in a desperate attempt to bring him home. Yet Jin-tae refuses to follow. Instead, he sacrifices himself to buy Jin-seok time to retreat, standing alone against the advancing North Korean troops. His act of self-sacrifice, however, feels tragically futile—not merely because he is outnumbered, but because the symbolic bond of blood, once invoked to unify two divided nations amid global conflict, is revealed to be precarious and untenable.
When the Steel Rain Comes
The erosion of the brotherhood metaphor in Taegukgi marks a turning point in the cultural imagination of inter-Korean relations. If Joint Security Area (2000) still held onto the possibility of reconciliation through the sentimental logic of blood and kinship, Taegukgi exposes the exhaustion of that narrative by revealing its dependence on violence, sacrifice, and loss. The image of Jin-tae’s self-destruction underscores not only the futility of familial loyalty under ideological division but also the diminishing power of “blood” as a unifying trope. In the decades that followed, this shift became increasingly visible across popular culture and political discourse, where the language of kinship gave way to that of global capital, technology, and deterritorialized identity. The fraternal bond, once imagined as the moral foundation for reunification, began to be replaced by more complex networks of affect, commerce, and military technology that transcend the boundaries of the nation-state.
In Steel Rain (2017), the fraternal sentiment that once grounded the idea of national reconciliation gives way to a model of relationality shaped by shared vulnerability and transnational responsibility. The North–South dynamic is reframed through the lens of global security, where the threat of nuclear annihilation demands cooperation that exceeds the logic of nationhood. The protagonists—Eom Chul-woo, the North Korean agent, and Kwak Chul-woo, the South Korean presidential secretary—embody this shift. (Yes. They share the same given name.) Their alliance, forged under conditions of geopolitical crisis, is not sustained by kinship but by an emergent sense of collective survival in an interconnected world.
The film opens at the Kaesong Industrial Complex in North Korea, where a military faction led by a general—who believes that nuclear technology must be used to achieve the greater cause of reunification—stages a coup d’état and attempts to assassinate the Respected Leader. Barely surviving the assassination attempt, the critically wounded leader escapes to South Korea with the help of North Korean agent Eom Chul-woo. The ensuing tension and strategic maneuvering between the coup’s instigator and those seeking to preserve stability on the peninsula form the film’s narrative core, as both sides struggle to manage the consequences of the crisis.
Steel Rain situates the Korean peninsula not as a site of internal division awaiting reconciliation but as a critical node within a global network of risk and deterrence. Its discourse of cooperation—mediated through diplomacy, cyber intelligence, and nuclear negotiation—articulates a new ethical horizon. Here, the relationship between North and South is no longer sustained by the myth of shared blood, but redefined through pragmatic coexistence: an acknowledgment that their intertwined futures must be navigated through negotiation, vulnerability, and mutual recognition within an ever-shifting global order.