Battle of Okitanawate

On March 24, 1584 (Tenshō 12), at a narrow embankment path called Okitanawate in the wetlands of Hizen Province, a decisive battle unfolded that would determine the hegemony of Kyushu. When Ryūzōji Takanobu, feared as the "Bear of Hizen," was defeated by the superior tactics of Shimazu Iehisa and fell in battle, this engagement became a turning point that cannot be omitted when discussing the sword culture and military history of Sengoku Kyushu.

**Ryūzōji Takanobu: A Warlord's View of the Sword**

Ryūzōji Takanobu (1529–1584) was a Sengoku daimyo who ruled northern Kyushu from his base in Hizen Province (present-day Saga and Nagasaki prefectures). Styled the "Bear of Hizen" and "Daimyo of Five Provinces and Two Islands," he occupied one of the three positions of power in Kyushu alongside Ōtomo Sorin of Bungo and Shimazu Yoshihisa of Satsuma.

The source of Takanobu's strength lay in his robust retainer corps and his aggressive deployment of firearms in warfare. In particular, capable commanders headed by Nabeshima Naoshige were gathered around him, and he deployed diverse tactics ranging from white-contact melee combat centered on the sword to long-distance warfare making use of firearms.

In the sword culture of Kyushu, the Ryūzōji clan occupied a unique position. Since ancient times, swordsmith workshops flourished in the Hizen and Higo regions, and the tradition of "Hizen blades" would later be inherited by smiths tracing their lineage through the Ten Great Disciples of Masamune. It is believed that most of the swords worn by the Ryūzōji clan's warriors were forged by these Hizen smiths.

**Shimazu Iehisa's Tactics: The Wetland Trap and the Sword's True Power**

Shimazu Iehisa (1547–1587), the youngest of the four Shimazu brothers who commanded the Battle of Okitanawate, was a rare military genius also acclaimed as "the mightiest general of the Sengoku period." Having achieved the distinction of defeating the vast armies of Ōtomo Sorin at the Battle of Mimi River (1578), Iehisa deployed bold stratagems at Okitanawate as well to overcome his numerical disadvantage.

When Iehisa observed the massive Ryūzōji army advancing in single file along the narrow embankment path of Okitanawate, he made maximum use of the geography of the Shimabara Peninsula's wetlands. On a single narrow road hemmed in by swamps, Ryūzōji's numerical superiority held no meaning. Iehisa concealed his musketeers and unleashed a volley of gunfire as the Ryūzōji forces crowded into the narrow embankment, throwing them into chaos. Next, lightly armed sword troops broke through the swamps, wheeled around to strike the flank, and cut down the Ryūzōji forces now in utter confusion.

What stands out in this battle is the subtlety of the Shimazu army's tactics combining firearms and swordplay. Using long-range musket fire to break enemy formations, then closing to white-contact melee with the sword—this two-stage tactic was, by contrast with the three-stage volley tactic at Nagashino which represented "the negation of sword tactics," rather a "fusion" of sword tactics with firearms.

**Ryūzōji Takanobu's Final Hour: A Warlord's Death**

Ryūzōji Takanobu was said to be in poor health before the battle. In his final years, illness and obesity had made it impossible for Takanobu to ride a horse, and records indicate he went to the battlefield seated in a palanquin. Participation in this field battle in such a condition had drawn warnings from his close advisors, but Takanobu insisted, "A master of the realm cannot withdraw from the field in fear of a weakened enemy."

In the chaos of battle, Shimazu general Kawakami Tadakata approached Takanobu's palanquin and severed his head. Takanobu was fifty-six years old. The "Bear of Hizen's" final hour came in the humiliating form of death within a palanquin, yet it also represented the pride of a warrior who never departed from the field of battle until the very end.

No detailed records remain of the specific sword used by Kawakami Tadakata, but the Satsuma-style blades wielded by Shimazu clan warriors traced their lineage to smiths who would become the precursors of the "Satsuma new blades." The swords employed by the Shimazu clan, which prized actual warfare, were exemplars of "practical swords" that prioritized cutting edge and durability over ornamentation.

**The Aftermath of Battle: Impact on Kyushu's Sword Culture**

Following Ryūzōji Takanobu's death, real power in the Ryūzōji clan was seized by Nabeshima Naoshige, who eventually established himself as daimyo of Hizen. Worthy of particular note in this change of power is the future course of Hizen's sword culture.

Upon entering the Edo period, swordsmith Tadayoshi (Hashimoto Tadayoshi) of Hizen Province and his disciples elevated the renown of "Hizen blades." In particular, the first generation Tadayoshi is said to have presented a favorite blade to Tokugawa Ieyasu, and came to receive the signature "Hizen no Kami Tadayoshi." This flourishing of Hizen blades would have been impossible without the political stability of Hizen following Okitanawate.

The Shimazu clan's conquest of Kyushu also became serious business after Okitanawate. Having defeated Ryūzōji, Shimazu also pressured the Ōtomo clan, and at one point came close to unifying all of Kyushu. However, with Toyotomi Hideyoshi's Conquest of Kyushu in 1587, Shimazu surrendered, and Kyushu's sword culture was swept up in the tide of national unification.

The Battle of Okitanawate was an emblematic engagement of Kyushu—another "Sengoku period." The Sengoku history of Kyushu, where the three powers of Hizen, Satsuma, and Bungo clashed, nurtured a unique sword culture distinct from the Sengoku history of the eastern territories. That culture's culmination was concentrated on the Okitanawate battlefield, and the Shimabara Peninsula even now transmits the memory of that history.

**Kyushu's Sengoku Sword Culture and Its Legacy to the Present**

Kyushu's sword culture lives on in the present age. Hizen blades continue to be inherited by swordsmiths of Saga Prefecture, and the Satsuma practical-sword tradition is passed down by bladesmiths in Kagoshima Prefecture. In the Shimabara Peninsula where the Battle of Okitanawate was fought, the battle history of Ryūzōji and Shimazu is perpetuated as a regional cultural heritage, and has become an important pilgrimage site for sword enthusiasts.

Though Ryūzōji Takanobu, the "Bear of Hizen," became a defeated figure, the sword culture that the Hizen lands under his rule would later take pride in was a foundation laid precisely in his age. While the victors of history are chronicled, the Battle of Okitanawate teaches us that behind them, a vanquished warrior's culture blossomed richly.