Trench knife

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U.S. M1917 "Knuckle Duster" trench knife and leather sheath of World War I

A Trench knife is a combat knife designed to kill or gravely incapacitate an enemy soldier at close quarters, as might be encountered in a trenchline or other confined area.[1][2][3] It was developed in response to a need for a close combat weapon for soldiers conducting assaults and raids on enemy trenchlines during the First World War. An example of a World War I trench knife is the German Army's Nahkampfmesser (close combat knife).[4][5]

With the outbreak of the Second World War, the trench knife, by this time usually referred to as a combat knife, proved so useful that armies continued to develop and issue new designs. On the Axis side, the Nahkampfmesser and designs developed from it were again widely issued to the ordinary soldier as general-purpose fighting and utility knives, while Allied armies generally restricted issue of trench knives to elite infantry units and infantry not otherwise equipped with the bayonet.[4]

Early trench knives[edit]

With the exception of the German Nahkampfmesser or (combat knife),[4] most early trench knives were fabricated by hand by individual soldiers or ordnance blacksmiths for the purpose of silently eliminating sentries and other enemy personnel during trench raids.[6] These early "trench knives" were often nothing more than shortened and sharpened Army-issue bayonets. One type of stabbing weapon, the French Nail, was made by cutting and pointing the steel stakes used to support the ubiquitous barbed wire protecting the trench lines. All trench knives share one common characteristic: they were designed specifically for military use in close combat encounters with enemy personnel. Some historians say that some trench knives models were inspired by the Bowie knife for its design.[7]

Soon afterwards, these fabricated trench knives were being used in defensive close-quarters trench warfare, and such fighting soon revealed certain limitations in existing designs.

A more elegant form of the French Nail was the introduction of the Poignard-Baïonnette Lebel M1886/14. Approved as a standard military infantry weapon after its development by Lt. Col. Coutrot[8] of the French Army, the Poignard-Baïonnette Lebel consisted of a long, needle-pointed, stiletto-profile blade with wood handle and an integrated knuckle guard made of steel. Originally a conversion of the French Épée-Baïonnette Modèle 1886 (bayonet), and designed strictly as an offensive weapon, the Poignard-Baïonnette Lebel used a section of the M1886 Lebel' long, narrow stiletto-type cruciform blade, designed to quickly kill a surprised enemy soldier with a single deep thrust. Up to three trench knives could be constructed from a single M1886 Lebel bayonet.

Because French industry was working under wartime conditions with numerous material shortages, often using subcontracted labor, even officially sanctioned French Army trench knives tend to vary significantly from knife to knife. The need for knives was so great that already-understrength French Army formations were forced to demobilize hundreds of former cutlery workers so that they could return to their former jobs and begin quantity production of trench knives for the armed forces. As the war went on, newer and more versatile blade-type trench knife patterns such as the double-edged dagger Couteau Poignard Mle 1916 dit Le Vengeur began to replace the French Nail and earlier stiletto-style trench knives.[9][10] The French lead in trench knife development was closely followed by the United States, which introduced three successive trench knife models - the M1917, M1918, and Mark I (1918) - all based directly or indirectly upon previous French designs.

German Army trench knives[edit]

The German Nahkampfmesser was the standard issue German combat knife during the First World War.[4] It remained in service in modified form through the end of the Second World War.[11] Most of these knives had slab wooden grips and metal sheaths and were sturdily made. According to one authoritative source, German-issued trench knives of World War I were "...conventional, general-purpose, cut-and-thrust knives..." with blades that were "...for the most part approximately six inches in length, single-edged with a top leading false edge...although double-edged blades are occasionally encountered." [12]

After the French Nail was employed against them, German forces on the Western Front also began to employ converted steel barbed-wire stakes into stabbing weapons for use by their own soldiers.

German trench knives carried during World War II were similar in design and are usually known today as boot knives, although they seldom were carried in boots. Most also had steel sheaths with clips that could be attached to boots, webbing or clothing, and most were made by government contractors and issued as combat gear.

British and Commonwealth LASBVN AFS trench knives[edit]

The British Army and its Commonwealth allies (e.g. Australia, Canada and New Zealand) used a wide variety of trench knives during World War I. Some were commercial models based on Bowie knives. Others were more specialised types, such as push daggers with a roughly cylindrical aluminium grip which was shaped to fit comfortably when the user's hand made a fist. The attached 4 in (10 cm) blade protruded between the knuckles of the user. It was common British practice for trench knives to be used in combination with other "quiet" weapons, like trench clubs, pickaxe handles and hatchets, during trench raiding expeditions, backed up with revolvers and hand grenades. Many standardized versions were made by government contractors and officially issued. Most had slab wooden grips and metal sheaths and were sturdily made. During the Second World War, the Fairbairn-Sykes Fighting Knife was widely issued to forces such as the Royal Marines, Parachute Regiment, Special Boat Service and the Special Air Service. Though not a true "trench knife" per se, the Fairbairn-Sykes was used for similar purposes.[13]

US trench knives[edit]

M1918 Trench Knife

The first official U.S. trench knife adopted for service issue was the U.S. M1917 trench knife designed by Henry Disston & Sons, and based on examples of trench knives then in service with the French Army. The M1917 featured a triangular stiletto blade, wooden grip, metal knuckle guard, and a rounded pommel. The M1917 proved unsatisfactory in service, and a slightly improved version, the M1918, was adopted within months. Despite this, the M1918 is almost identical to the M1917, differing primarily in the construction and appearance of the knuckle guard. Usable only as stabbing weapons, the M1917 and M1918 frequently suffered broken blades. Their limited utility and general unpopularity caused the AEF to empanel a testing board in 1918 to test various trench knives and select a replacement.

The next U.S. trench knife was the Mark I, which was designed by a board of U.S. Army officers to remedy certain deficiencies of the M1917/18.[14] Adopted in late 1918, with a blade profile patterned after the French Couteau Poignard Mle 1916 dit Le Vengeur, most Mark I knives were completed too late to see service in the trenches of World War I.

During World War II, the Mark I was issued in 1942 and 1943 to airborne troops, Army Rangers, and Marine Raiders.[15][16][17] The Mark I featured a full-tang design with a double-edged blade and a heavy bronze hilt incorporating a guard ostensibly shaped as a knuckle duster, though the latter was intended to protect the fingers and prevent the knife from being knocked from the hand while in combat rather than for use as a weapon.[14] Reflecting the savagery of hand-to-hand trench warfare, the Mark I's pommel incorporated a so-called 'skull-crusher' cap extension, ostensibly designed to stun or kill an enemy soldier and to provide a secondary weapon in circumstances where the blade was damaged or broken. A special proprietary metal scabbard was issued with the Mark I, capable of accommodating the new knife and its over-sized knuckleduster grip handle.

In 1918, Captain Rupert Hughes of the U.S. Army submitted a patent application for a specialized automatic-opening trench knife of his own design, the Hughes Trench Knife.[18] This was a curious device consisting of a folding spring-loaded knife blade attached to a handle which fastened to the back of the hand and was secured by a leather strap, leaving the palm and fingers free for grasping other objects.[18] Pressing a button on the handle automatically extended a knife blade into an open position and locked position, allowing the knife to be used as a stabbing weapon.[18] The Hughes Trench Knife was evaluated as a potential military arm by a panel of U.S. Army officers from the American Expeditionary Force (AEF) in June 1918.[14] Unfortunately, after testing the board found the Hughes design to be of no value, and it was never adopted.[19] Hughes went on to patent his automatic trench knife in 1919, though it appears to have never interested any civilian manufacturers.[18]

In 1943, the U.S. Army adopted the M3 Trench Knife as a replacement for the Mark I.[20] The Mark I required strategic metals to produce and was too costly to place into mass production, and had been criticized as being unsuited to more modern styles of hand-to-hand knife fighting.[15][16][20][21][22][23] As the U.S. Catalog of Standard Ordnance Items of 1943 explained: The Trench Knife M3 has been developed to fill the need in modern warfare for hand-to-hand fighting. While designated for issue to soldiers not armed with the bayonet, it was especially designed for such shock units as parachute troops and rangers.[3][23] The M3 was first issued to U.S. Army soldiers in 1943, with the first knives going to elite units such as airborne troops and the U.S. Army Rangers.[23] Despite being designed for hand-to-hand warfare, the M3 did not receive universal praise as a fighting knife upon issue to combat units. While well-balanced (some paratroopers and rangers mastered the art of using the M3 as a throwing knife), the M3's blade was criticized as being too narrow for rough usage, particularly for utility tasks such as opening ammo crates and food tins, while its edge was found to be somewhat difficult to sharpen.[23] The blade's secondary edge was also criticized as being too short, limiting the knife's utility when used for backhand slashing strokes.[20][23] Many features of the M3 were incorporated into the M4 and eventually M5 bayonet for the M1 Carbine and the M5A1 which was in production until 1960. The M5 series would lead directly to the M6-M8 bayonets for the M-16 Rifle. The M4/M5 bayonets had a matching scabbard, the M8A1, officially designated as the "Scabbard, Bayonet Knife, M8A1," with the National Stock Number (NSN)1095-00-508-0339 and the scabbard could be used for either the M3 fighting knife or its M4/M5 bayonet cousins. [24]

Other fighting knives used by U.S. forces have sometimes been referred to as trench knives. These include the stiletto-shaped daggers carried by Marine Corps Raiders in World War II, and fighting-utility knives made by KA-BAR and other manufacturers.

In popular culture[edit]

  • The character "Bobby Maxwell" (played by DeVeren Bookwalter) in the Clint Eastwood movie The Enforcer carried a Mk. I Model 1918 (brass knuckle) trench knife.
  • Lee Marvin's character "The Sergeant" in Samuel Fuller's The Big Red One carried a Mk. I Model 1918 (brass knuckle) trench knife.
  • Frank Sinatra's character "Cpt. Tom Reynolds" in the John Sturges movie Never So Few carried a Model 1917 (triangular bladed) trench knife.
  • Roberta, a maid and military-trained assassin in Black Lagoon, uses a spike-knuckled trench knife amongst a vast array of weaponry.
  • Roland Weary in Slaughterhouse-Five carries a three-bladed trench knife with a spiked knuckle at all times, and often describes its various properties.
  • Sylvester Stallone has been an avid knife collector for many years. In the first Rocky movie, he has an M1917 (triangular bladed) trench knife stuck in a corner on top of his dresser bureau (to the right of the mirror), and there is a Mk. I M1918 (brass knuckle) trench knife stuck in a side near the top of his dresser bureau.
  • Can be used in the MMO Dead Frontier, as a rather weak melee weapon.
  • Sarutobi Asuma of the anime Naruto uses two trench knives of the knuckle-duster variety as his weapons of choice. After his death, Asuma's trench knives are passed down to his student, Shikamaru Nara.
  • In Call of Duty: World at War a trench knife (Bowie Knife) can be obtained in Der Riese (Part of the Map Pack 3 DLC). This version is basically the massive blade of the Bowie Knife, with the infamous Knuckleduster grip of the M1917 Trench Knife.
  • In the Nintendo DS game Sands of Destruction the main character Kyrie Illunis uses two knives, one in each hand, as his main weapons. He starts out with a cooking knife but later can obtain more powerful ones such as trench knives similar in design to the USMC-issue KA-BAR.
  • In the HBO television show Boardwalk Empire, one of the main characters, Jimmy Darmody played by (Michael Pitt) carries a Mark I trench knife that he received during service in World War I. The knife becomes the focus of a tense scene in which the character in question jokes that the skull crusher located on the bottom was used to crack walnuts.
  • In the game Wolfenstein: The New Order one of the available weapons seen in a demo is a World War I-style trench knife.
  • The game Battlefield 4 features a trench knife in multiplayer; this weapon is called the "Trench".

Reference literature[edit]

  • Wolfgang Peter-Michel Author of: Grabendolche: Militärische Kampfmesser des Ersten Weltkriegs
  • Frederick J. Stephens Author of: Fighting Knives: Illustrated Guide to Fighting Knives and Military Survival Weapons of the World

See also[edit]


  1. ^ Peterson, Harold L., Daggers and Fighting Knives of the Western World, Courier Dover Publications, ISBN 0-486-41743-3, ISBN 978-0-486-41743-1 (2001), p. 80: "Right at the outset trench knives were introduced by both sides during World War I, so that the common soldier was once again equipped with a knife designed primarily for combat."
  2. ^ Alger, John I., Definitions and Doctrine of the Military Art: Past and Present, Avery Publications Group, ISBN 0-89529-309-9, ISBN 978-0-89529-309-1 (1985), p. 102
  3. ^ a b Catalog of Standard Ordnance Items, Washington, D.C: U.S. Army Ordnance Publications (1943)
  4. ^ a b c d Bull, Stephen, Encyclopedia of Military Technology and Innovation, Greenwood Publishing, ISBN 1-57356-557-1 (2004), p. 70: During World War I, many German trench or close combat knives (Nahkampfmesser) were officially issued by the military, while privately purchased knives were often made to standardized military patterns. Most featured blades of approximately 150 mm (6 inches), with slab wooden grips and metal scabbards.
  5. ^ Military Collectables: An International Directory of Twentieth-Century Militaria, Crescent Books, ISBN 0-517-41266-7, ISBN 978-0-517-41266-4 (1984), p. 37
  6. ^ Duan, James T., Dear old "K", Boston, MA: James T. Duane (1922), p. 76
  7. ^ Shotgun, (2002)
  8. ^ Roquier, Roger, and Lecoeur, Gérard, Les couteaux de nos soldats, Paris: Editions Crépin-Leblond, ISBN 2-7030-0195-9 (2001): In 1915, Lt. Col. Coutrot, an artillery officer, was serving as the officer-in-charge of the military acceptance board for machine guns made by MAC (Manufacture d'armes de Châtellerault) located in the French commune of Châtellerault, which also happened to be a center of the French cutlery industry.
  9. ^
  10. ^
  11. ^ Sainz, Agustin, Deutsche Soldaten, Casemate Publishers, ISBN 1-932033-96-3, ISBN 978-1-932033-96-0 (2008), p. 152
  12. ^ Johnson, Thomas M., LTC (Ret.) & Wittmann, Thomas T.: Collecting the Edged Weapons of Imperial Germany, Vol. I, Privately published, ISBN 0-9600906-0-6 (1988), p. 317
  13. ^ Johnson, Thomas M., LTC (Ret.) & Wittmann, Thomas T.: Collecting the Edged Weapons of Imperial Germany, Vol. I, Privately published, 1988, p. 317. ISBN 0-9600906-0-6
  14. ^ a b c Crowell, Benedict (1919), America's Munitions 1917-1918, Report of Benedict Crowell, Assistant Secretary of War (Director of Munitions), U.S. War Department, Washington, D.C.: U.S. Government Printing Office, pp. 88, 228
  15. ^ a b KNIFE - U.S. KNIFE MODEL 1918 MKI TRENCH, Springfield Armory Museum - Collection Record
  16. ^ a b Canfield, Bruce N., U.S. INFANTRY WEAPONS OF WORLD WAR II, Lincoln, RI: Andrew Mowbray Publishers, ISBN 0-917218-67-1, ISBN 978-0-917218-67-5 (1994)
  17. ^ Shackleford, Steve, ed. (2009), Blade's Guide To Knives And Their Values, Krause Publications, ISBN 978-1-4402-0387-9, p. 387
  18. ^ a b c d Hughes, Rupert, Letters Patent No. 1,315,503 issued September 9, 1919, Washington, D.C.: United States Patent Office
  19. ^ Military affairs: journal of the American Military Institute, American Military History Foundation, American Military Institute, Kansas State University, Dept. of History (1937) Vol. I, p. 153
  20. ^ a b c Whitman, L., New Army Trench Knife, Army & Navy Journal, Vol. 80, 6 February 1943, p. 649
  21. ^ Blending Metals to Arm Our Fighting Men, Popular Science, Vol. 142 No. 6 (June 1943), p. 104
  22. ^ Somers, R.H. (Brig. Gen., U.S. Army, ret.) (ed.), Ordnance, American Ordnance Association, Volume 24, No. 138 (May–June 1943), pp. 553-554
  23. ^ a b c d e Cassidy, William L., The Complete Book Of Knife Fighting, ISBN 0-87364-029-2, ISBN 978-0-87364-029-9 (1997), pp. 47-48
  24. ^

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