Japanese Swords in the Pacific War: The Historical Reality of Swords on the Battlefield

The Myth and Reality of Combat with Gunto

In films and novels depicting the Pacific War, scenes repeatedly appear of Japanese military officers raising gunto high and leading charges. But does this actually reflect historical fact? The answer is "partially yes, but no in many respects."

According to modern military history research, the primary means of combat in the Pacific War were rifles, machine guns, mortars, and artillery—cases where gunto decided the outcome of battle were extremely rare. The battlefield of the 1940s was already a space dominated by industrialized mass-casualty weapons, and the impact of close combat on overall military circumstances was limited. Officers carrying gunto bore them primarily as an "identification of rank as a commanding officer" and as a "spiritual symbol."

Types of Gunto—The Conflict Between Modernization and Tradition

The swords carried by Japanese military officers during the Pacific War period can be broadly divided into two types.

One is the regulation military sword called "gunto koshirae" (gunto fittings), with the Type 94 and Type 98 gunto as representative examples. These consisted of a Western saber-style exterior mounting with a Japanese sword blade inside, and in many cases officers privately obtained blades to fit into gunto koshirae. The Type 95 gunto was issued for use by non-commissioned officers, but these had blades mass-produced in factories and stood apart from traditional sword forging techniques. During this era known as Showa swords (gunto period), the characteristic feature was the coexistence of mass-produced blades and properly forged blades.

The other type consisted of swords passed down in families or newly commissioned from renowned sword makers—true "Japanese swords" in the original sense. During wartime, swords manufactured at the Yasukuni Shrine sword forging society's workshop (established in 1933), called "Yasukuni blades," were particularly prized among officers. These were forged by sword makers using traditional tamahagane, and possessed genuine artistic and craftsmanship value as true Japanese swords.

Records testify that when actually used in combat, there were clear differences in durability and cutting ability between industrial products and traditionally forged blades.

Situations Where Gunto Were Actually Used

Nevertheless, there are several documented instances where gunto were used in actual combat.

• Close combat in jungles and island territories: In close combat in dense forests and urban areas such as Guadalcanal, the Philippines, Okinawa, and Burma, gunto were sometimes drawn during charges. In narrow trenches, cave fortifications, and nighttime surprise attacks involving hand-to-hand combat, blades had certain effectiveness and were used in combination with bayoneted rifles in close combat, as documented in records.
• Use in handling prisoners and surrenders: As a tragic historical fact, there are records of gunto being used in the execution of prisoners and treatment of surrenders. The reporting of the "killing contest of one hundred" in the Nanjing Incident was problematically viewed internationally at the time and was submitted as evidence at the Tokyo Trials. While this issue remains subject to differing interpretations among historians, the fact that gunto were used in violence in occupied territories cannot be denied.
• Ritualistic acts before "gyokusai": Reports from various locations document officers entrusting gunto to subordinates or leaving them at command posts before gyokusai (suicidal all-out charges). By leaving the blade as a "memento," there was a symbolic meaning of completing the return to family.

Gunto for Officers—The Layered Spiritual Meaning

Why did Japanese military officers continue to carry gunto despite their limited practical utility in modern warfare? The answer lies in the complex layered nature of spiritual and cultural meaning.

• Embodiment of bushido spirit: According to the militaristic interpretation of bushido, the sword was the "soul of the warrior," and carrying it was believed to maintain a bushido spirit. The "bushido" reinterpreted and reconstructed after the Meiji Restoration was positioned at the core of prewar military education, and blades functioned as its visible symbol.
• Symbol of command and leadership: The act of an officer drawing their gunto and ordering a charge was a symbol of the "commanding officer standing at the front" to subordinates and a means of boosting morale. Regardless of actual danger, the act of drawing the blade itself had the effect of igniting the fighting spirit of subordinates, as recorded in multiple war chronicles.
• Bond with family and homeland: In many cases, officers maintained spiritual connection with their homeland and family by carrying swords inherited from fathers or grandfathers, or swords received from family. The custom of families commissioning local sword makers to prepare new swords before deployment persisted in various regions, and swords carried meaning as "protective talismans" that transcended mere weapons.

Swords Left on the Battlefield—Evidence from Captured Weapons

American military official records contain numerous descriptions of gunto captured from Japanese military officers. The difference in quality was marked, with testimony confirming a range from masterwork and traditionally forged blades to Type 95 industrial swords.

Thousands of military swords brought back by American soldiers as spoils of war are said to currently rest in the collections of enthusiasts across the United States. Some may include authentic works by master craftsmen from before the Edo period. The Japanese Sword Cultural Foundation and others support their repatriation, and there are numerous instances of swords actually being returned to bereaved families. As of 2026, repatriation applications continue from overseas ethnic Japanese descendant heirs, and collaborative public-private initiatives are progressing.

Meanwhile, swords also played an important role at the surrender ceremonies following the war's end. On September 2, 1945, at the surrender signing ceremony aboard the USS Missouri, many Japanese military officers handed over their gunto to the Allied forces. This act was deliberately staged as a symbol of surrender that imposed on samurai the ultimate humiliation—surrendering their sword.

Postwar Legal Reorganization and Transition to Cultural Property

Following the war's end, GHQ issued an order for comprehensive confiscation and destruction of swords including Japanese blades. During this postwar sword hunt period, many swords were destroyed, but through negotiation by the Japanese side emphasizing cultural property value and the efforts of sword researchers and enthusiasts, Japanese swords as art objects were placed under a registration system for protection in 1946.

The current Firearms and Swords Law clearly recognizes possession of Japanese swords as art objects, managing them by requiring registration with prefectural education boards. From a statistical perspective, the frequency with which registered Japanese swords are used in crime is notably lower compared to other edged implements.

Accurately understanding the reality of gunto in the Pacific War is essential to comprehending the starting point of postwar Japanese sword culture. Within the historical transition from battlefield symbol to art object and cultural property, blades have continued to be a mirror reflecting the Japanese spiritual history. The sight of swords that once rushed across battlefields now standing quietly in museum light—this very contrast itself tells the story of modern and contemporary Japan's journey. Contact with the history of Japanese swords may provide an opportunity to grapple with this complex past.