Korea is remembered in the novel as the setting of Japan’s costly invasions and retreat, not as a place visited in the main action. Its campaigns survive in the accounts characters give of battles, defeat, and humiliation: Fujiko’s father received his swords for courage during the first invasion, while Buntaro remembers the war as a lost chance to conquer China and settle old scores. These recollections make Korea a military landscape carried into the present through objects, memory, and grievance.

The Invasions and Retreat

Seven years before the scene in which Blackthorne handles Fujiko’s swords, her father had been awarded them for bravery after a particularly bloody battle in the far north of Korea during Japan’s first invasion. The campaign had carried Japanese armies north through the kingdom. Near the Yalu River, Chinese forces crossed the border and joined battle; their overwhelming numbers routed the Japanese. Fujiko’s father served in the rearguard covering the retreat toward the mountains north of Seoul. There the Japanese turned to fight and brought the action to a stalemate.

The account distinguishes a difficult rear-guard action from the wider defeat. Fujiko’s father’s courage earned him a lasting family possession, but the retreat remained part of a failed expedition. The first invasion was followed by a second campaign, and together the two were described as the costliest military expedition Japan had ever undertaken. The scale of that cost gives the swords a history beyond their value as weapons: they mark an individual act of service within a national undertaking that ended without the victory its leaders had sought.

When the Taikō died the previous year, Toranaga, acting on behalf of the Council of Regents, ordered the remnants of the Japanese armies home. The withdrawal relieved many daimyos, who had detested the Korean campaign. In this account, the return from Korea is both a practical end to an expensive military commitment and a politically consequential decision made during the transition after the Taikō’s death.

Military Memory and Material Remains

Korea enters Blackthorne’s life through Fujiko’s explanation of the swords he wears. She tells him that her father received them for bravery in the first invasion; the family object thus carries a specific history of battle, retreat, and service. Blackthorne’s swords are part of his new place in Japanese society, but their provenance connects them to a campaign that predates his arrival and to a military past remembered within the household.

That past is not presented only through inherited arms. Buntaro recalls Korea in the sensory terms of military occupation, complaining that meat was continually boiled or roasted there and that the smell of garlic clung to clothes and hair. His account makes food and smell part of the remembered experience of war, while his contemptuous descriptions of Koreans expose the prejudice through which he interprets that experience. The memory is therefore not neutral testimony: it reveals both the conditions he associates with the campaign and the hostility he directs toward the people among whom it was fought.

Defeat, Blame, and Unresolved Ambition

Buntaro insists that the war could have been won easily and that Japanese armies might have pushed through to China and civilized both countries. He explains the failure as betrayal by traitors in high places, rather than as the consequence of the Chinese forces’ vastly superior numbers described in the account of the retreat. The contrast between these explanations is central to Korea’s place in his memory: military defeat becomes a grievance that can be assigned to enemies at home and kept alive as a promise of future vengeance.

His anger is personal and political. He says he will wait for his enemies’ bodies to float down a river so that he can spit on them, and links his hatred of traitors with his condemnation of adulterers and liars. The Korean campaign supplies the injury around which this language of revenge gathers, but the targets he names extend beyond the battlefield. His recollection shows how a failed expedition can persist not as a settled past but as a justification for continuing suspicion and hostility.

Narrative Significance

The novel presents Korea through sharply different forms of remembrance: the route of a retreat, a pair of swords earned in its rearguard, and Buntaro’s bitter account of what the campaign should have achieved. Together, these details resist a single, uncomplicated story of victory or defeat. The rearguard’s stand could reach a stalemate, yet the wider expedition was ruinously costly and its armies came home; personal bravery endured in an heirloom, while national ambition turned into grievance.

Korea also connects military history to the characters’ present circumstances. The swords bring the invasion into an intimate domestic exchange, while Buntaro’s memories disclose how his understanding of honor and betrayal has been shaped by the campaign. Toranaga’s order to bring the remaining troops home provides the political endpoint of the expedition, but it does not settle its meaning for those who fought or remember it. In the novel, Korea remains consequential precisely because the armies have left: its defeat continues to furnish objects, loyalties, and resentments in the present.