The Great War of the Claimed Lands stands as one of the most defining and politically charged arcs in The Rising of the Shield Hero. Far beyond a simple clash of armies, this sprawling conflict peels back the layers of manipulation, religious dogma, and territorial ambition that have driven the world since the first Wave of Catastrophe. Understanding the war demands a thorough look at the factions, their hidden motivations, and the seismic shifts it causes in both the power structure and the psyche of its participants.

Historical Context and the Prelude to War

To appreciate the Great War, one must first understand the fragile political ecosystem that predated it. The summoning of the Four Legendary Heroes—Sword, Spear, Bow, and Shield—was not an act of divine benevolence but a desperate, calculated move by the kingdom of Melromarc. Each hero was tied, by centuries of doctrine, to a specific stance in the mortal world. The Shield Hero, historically revered by demi-human nations like Siltvelt, was immediately perceived as a threat within the human-supremacist theocracy of Melromarc.

The Four Legendary Weapons and Geopolitics

The legendary weapons are more than magical armaments; they are geopolitical symbols. The Sword, Spear, and Bow are lionized in Melromarc and its allied nations, while the Shield is elevated in the demi-human territories. This religious polarization created an environment where Naofumi Iwatani, the Shield Hero, was scapegoated before he could even defend himself. The kingdom’s ingrained bigotry, fueled by the Church of the Three Heroes, set the stage for the political chaos that would later explode into war. As detailed in critical analyses of the series, the narrative uses this setup to critique blind nationalism and institutionalized prejudice.

The Church of the Three Heroes

The Church of the Three Heroes functioned as a shadow government within Melromarc, wielding enough influence to manipulate the crown. By excluding the Shield Hero from their pantheon, they legitimized his persecution. When Naofumi’s innocence and competence started to undermine their narrative, the Church orchestrated a coup, attempting to depose the royal family and install a puppet regime. This internal betrayal was a critical prelude to the broader war, exposing how deeply religious corruption had infected the state.

Factions at the Heart of the Conflict

The Great War of the Claimed Lands was not a two-sided affair. It involved a complex tapestry of nations, rebel groups, and interdimensional entities all vying for control over newly emerged territories—islands and continents pulled from other worlds by the Waves. The scramble for these “claimed lands” turned simmering tensions into open warfare.

  • The Kingdom of Melromarc – Officially led by Queen Mirellia after the Church’s purge, the kingdom sought to reclaim its superpower status by seizing as many new lands as possible. Its internal fractures, however, made it a volatile ally.
  • Siltvelt – A demi-human supremacist nation that worshipped the Shield Hero. Siltvelt saw the war as an opportunity to expand its ideology while attempting to court Naofumi as a divine figurehead, a role he resolutely rejected.
  • Shieldfreeden – A nation of beastmen and mercenaries that balanced pragmatism and honor. Its leadership walked a fine line between open allegiance with Naofumi and preserving its sovereignty against larger powers.
  • The Wave Vanguard – Agents from the world that was actively colliding with the heroes’ reality. Figures like Kyo Ethnina manipulated nations and even the Waves themselves to steal power and technology from the claimed lands.
  • Independent Warlords and Adventurer Clans – The chaos allowed countless smaller factions, including former heroes’ parties and mercenary bands, to carve out personal fiefdoms, adding guerrilla warfare to the conflict.

Political Motivations and Schemes

Melromarc’s Monarchic Power Play

Queen Mirellia Q Melromarc emerged as a shrewd diplomat, but her primary goal remained securing Melromarc’s dominance. She skillfully manipulated the other heroes—Motoyasu, Ren, and Itsuki—while simultaneously forging a genuine alliance with Naofumi after recognizing his strategic value. Her decision to officially pardon the Shield Hero and make him an Archduke of the claimed lands was both a stroke of political genius and a calculated gamble. It legitimized Naofumi’s authority while tying his success directly to the kingdom’s interests.

The Shield Hero as a Reluctant Political Symbol

Naofumi’s journey from despised outcast to a central political figure was the lynchpin of the war. The very nations that once called for his execution now sought his favor because he commanded the most effective fighting force and had proven his ability to cultivate land and technology. His village, initially a modest holding, became a sanctuary for demi-humans and a model of self-sufficient governance. This made him a king in all but name, forcing him to engage in diplomacy and resource management that he had never desired. The light novels meticulously depict Naofumi’s internal conflict as he grapples with the corrupting nature of power he never wanted but must wield to protect those he loves.

The Other Heroes’ Ideological Prison

Motoyasu, Ren, and Itsuki were tragic examples of political pawns who believed they were players. Their absolute faith in the game-like mechanics of their world and the false narratives fed to them by Melromarc’s aristocracy made them liabilities. During the war, their inability to adapt to realpolitik led to catastrophic losses. They were repeatedly outmaneuvered by foreign powers and even by the Church, their shallow understanding of heroism shattering against the complexity of actual statecraft.

The Alliances that Shaped the War

The Unlikely Coalition with Queen Mirellia

One of the most surprising and durable alliances was the one forged between Naofumi and Queen Mirellia. Despite the kingdom’s original betrayal, Mirellia’s transparent pragmatism and her ruthless elimination of the Church’s corruption earned a grudging respect from Naofumi. Their partnership gave Naofumi the political cover to operate internationally, while Mirellia gained a deterrent against Siltvelt aggression. The treaty that granted Naofumi his own domain was the bedrock upon which the eventual peace was built.

The Vassal Weapon Wielders and Cross-World Alliances

The arrival of the Vassal Weapon holders from Glass’s world added a dimension beyond simple territorial conquest. These warriors, including L’Arc Berg and Glass herself, were initially antagonists but became essential allies. Their fight against the true architect of the calamitous Waves, Kyo, forced all factions to confront a greater existential threat. This tenuous cross-world cooperation highlighted a recurring theme: survival often trumps ideology, but mutual distrust never fully disappears.

Betrayals and Shifting Loyalties

The war was littered with defections. Malty Melromarc, the princess who first framed Naofumi, became a symbol of serpentine treachery by aligning herself with any force that promised her power, including Kyo. Meanwhile, many nobles switched sides depending on battlefield outcomes. The fluidity of these loyalties demonstrated that in the claimed lands, treaties were often temporary and personal ambition consistently trumped national allegiance.

Key Battles and Turning Points

The Race for the Spirit Tortoise and the Phoenix

While these guardian beasts were ostensibly threats spawned by the Waves, they also became strategic assets. Controlling their power—and the vast tracts of land left in their wake—was a military objective. The battle over the Spirit Tortoise was a sobering lesson for the other heroes, who rushed in without intelligence and suffered humiliating defeats. Naofumi’s intervention, backed by his coordinated party and tactical use of the Shield’s abilities, redefined the perception of his leadership from a mere tank to a brilliant commander.

The Confrontation with Kyo and the Claiming of the New Islands

The true climax of the Great War occurred in the otherworldly laboratory of Kyo, a rogue scientist from the vanguard world. His manipulation of the Waves had created an archipelago of contested islands. The multi-faction battle that unfolded there—involving Melromarc’s forces, Naofumi’s group, Siltvelt’s agents, and Glass’s team—was a chaotic free-for-all that decided the balance of power. When Kyo was finally defeated, the immediate military conflict de-escalated, but the diplomatic scramble to claim the remaining land intensified.

Impact on the Characters

Naofumi’s Evolution into a Ruler

War forced Naofumi to mature from a defensive survivor into a proactive leader. His experience with betrayal had taught him the value of trusted vassals like Raphtalia, Filo, and the villagers who swore fealty to him. However, managing a territory required a new set of skills: trade negotiations, infrastructure development, and the cold calculus of wartime alliances. The Shield Hero, who once trusted no one, had to learn to place calculated faith in a network of allies to prevent his fledgling nation from being crushed between superpowers.

Raphtalia and the Demi-Human Struggle

Raphtalia’s role expanded dramatically during the war. As a demi-human and Naofumi’s sword, she became a beacon for her oppressed people. The war provided the first genuine opportunity in centuries for demi-human nations to assert their sovereignty without fear of immediate purges. Her diplomatic presence softened Naofumi’s edges and gave a human face to the coalition he was building. The official anime adaptation, available on Crunchyroll, captures this growth through pivotal scenes that highlight her political awakening.

The Other Heroes’ Redemption Arcs

The Great War served as a brutal crucible for Ren, Itsuki, and eventually Motoyasu. Their hubris was shattered by real consequences. Ren’s guilt over the Spirit Tortoise incident and Itsuki’s fall into a self-righteous tyranny were direct results of their flawed political understandings. While true redemption was a slow and painful process, the war stripped away their delusions and forced them to recognize Naofumi’s competence—not as a rival, but as a necessary cornerstone of the world’s stability.

The Role of External Threats in Unifying Factions

The Waves of Catastrophe were never the true enemy; they were a symptom of worlds colliding. The revelation that the claimed lands were fragments of dying worlds, and that the Waves could be weaponized, introduced a cold-war dimension to the conflict. Nations that had been at each other's throats suddenly faced a common, technologically superior foe in the form of Kyo and his backers. This external pressure forced temporary ceasefires and intelligence sharing, revealing that the political landscape of their world was only a small piece of a much larger, more dangerous multiverse.

The Legacy of the Great War and the Reordered World

When the dust settled, the geopolitical map had been irrevocably altered. Melromarc’s hegemony was weakened, and the successful integration of the claimed lands under Naofumi’s stewardship created a new power bloc that answered to no single crown. Siltvelt’s ambition was checked, and smaller territories gained an unlikely protector in the Shield Hero. The war also dismantled the Church of the Three Heroes’ remaining influence, allowing for a more secular, pragmatic approach to governance across the region.

The Rise of the Archduchy

Naofumi’s domain, officially recognized as the Archduchy of the claimed lands, became a model of multi-species cooperation. It attracted refugees, merchants, and scholars, turning a war-torn frontier into a burgeoning center of trade and innovation. This peaceful development was a direct counterpoint to the war, proving that the Shield Hero’s philosophy of protection and cultivation could yield more lasting prosperity than conquest.

Setting the Stage for the Final Confrontation

The Great War was not the end. It exposed the deeper conspiracy of the Waves and the true gods behind the calamity. The alliances, grudges, and institutional knowledge gained during this conflict became critical in the subsequent battles that would decide the fate of all worlds. The political capital Naofumi accumulated allowed him to unite armies that had once sworn to destroy him—a testament to how completely the war had reshaped the stakes of the entire narrative.

Conclusion: A War of Ideology and Survival

The Great War of the Claimed Lands was far more than a territorial dispute; it was a war of ideology, survival, and the redefinition of heroism itself. Every faction entered the fray believing its cause was just, yet the conflict exposed the fragility of dogma and the high cost of bigotry. Naofumi Iwatani’s ascent from betrayed pariah to the linchpin of a new world order demonstrates that political power, when wielded with resilience and genuine care, can transcend the vicious cycles of hatred. The legacy of the war continues to echo through the remainder of the series, a permanent reminder that the deadliest battles are often fought not with swords, but with trust, treaties, and the courage to stand alone when the world demands conformity.