Soviet POMZ-2 Anti-Personnel Mine

Overview

The POMZ-2 is a Soviet-designed stake-mounted, tripwire-activated fragmentation anti-personnel mine that became one of the most widely proliferated landmines of the 20th century. First introduced during World War II, this simple yet effective design influenced countless similar weapons and remains encountered in post-conflict environments worldwide. Its characteristic cylindrical cast-iron body mounted on a wooden stake makes it one of the most recognizable anti-personnel mines in military history.

Country/Bloc of Origin

  • Country of Origin: Soviet Union (USSR)
  • Development Period: Early 1940s, during World War II
  • Designer: Soviet military engineers
  • International Production: Extensively copied and manufactured throughout the Warsaw Pact nations, China, and numerous other countries
  • Licensed/Unlicensed Variants: Produced in China (Type 59), North Korea, Vietnam, Egypt, and many other nations with varying degrees of modification

Ordnance Class

  • Type: Landmine
  • Primary Role: Anti-personnel fragmentation mine
  • Activation Method: Tripwire-initiated
  • Emplacement: Hand-emplaced, stake-mounted above ground
  • Category: Bounding/stake mine (non-bounding fragmentation type)

Ordnance Family/Nomenclature

  • Official Designation: POMZ-2 (ПОМЗ-2 in Cyrillic)
  • Full Russian Name: Противопехотная Осколочная Мина Заградительная, Model 2 (Anti-Personnel Fragmentation Barrier Mine, Model 2)
  • NATO Designation: POMZ-2
  • Related Variants:
    • POMZ (original variant)
    • POMZ-2M (modernized variant with improved fuze well)
    • Chinese Type 59
    • Various Eastern Bloc copies
  • Common Names: “Stake mine,” “Tripwire mine”

Hazards

Primary Hazards
  • Fragmentation: Primary kill mechanism; cast-iron body breaks into numerous high-velocity fragments upon detonation
  • Blast Effect: Secondary hazard from 75g TNT explosive charge
Sensitivity Considerations
  • Tripwire Sensitivity: Designed to detonate with 1-5 kg of pull on the tripwire
  • Fuze Sensitivity: MUV-series fuzes are pull-friction type with relatively low activation force
  • Degradation Risk: Wooden stakes rot over time, potentially causing mines to fall and detonate; cast-iron bodies corrode but remain functional for decades
  • Environmental Factors: Tripwires may become concealed by vegetation growth or buried by soil movement
Danger Areas
  • Lethal Radius: Approximately 4-6 meters (13-20 feet)
  • Casualty Radius: Up to 15-25 meters (50-80 feet) from fragmentation
  • Tripwire Length: Typically deployed with 10-15 meter tripwires, but may extend further
UXO Considerations
  • Extremely common in post-conflict regions from WWII through modern conflicts
  • Fuzes may become increasingly sensitive with age
  • Tripwires may be difficult to detect after years of environmental exposure
  • Never approach or attempt to clear without proper EOD training and equipment

Key Identification Features

Dimensions
  • Body Length: Approximately 107mm (4.2 inches)
  • Body Diameter: Approximately 60mm (2.4 inches)
  • Total Height (with stake): Approximately 400-500mm (16-20 inches) above ground
  • Total Weight: Approximately 1.5-2 kg (3.3-4.4 lbs) complete with stake and fuze
Physical Characteristics
  • Body Shape: Cylindrical with distinctive external fragmentation grooves (both horizontal and vertical scoring)
  • Body Material: Cast iron with pre-formed fragmentation pattern
  • Stake: Wooden, typically 300-400mm long, pointed at bottom for ground insertion
  • Fuze Well: Threaded opening at top center of mine body
  • Color: Typically olive drab, khaki, or unpainted dark metal; may appear heavily rusted in field conditions
Distinctive Features
  • Prominent grid pattern of fragmentation grooves on outer surface
  • Cylindrical shape wider than tall
  • Visible fuze protruding from top when armed
  • Metal tripwire anchor point or fuze striker mechanism visible
  • Wooden stake attached to body via metal clamp or wire
Markings
  • May bear Soviet factory codes and year of manufacture
  • Lot numbers sometimes stamped on body
  • Markings often obscured by corrosion in field-recovered items

Fuzing Mechanisms

Primary Fuzes Used
  • MUV (МУВ): Standard pull-friction fuze
  • MUV-2: Improved variant with better environmental resistance
  • MUV-3: Later variant with additional safety features
  • MUV-4: Modernized version
Fuze Components
  • Striker Assembly: Spring-loaded firing pin held by striker retaining pin
  • Safety Pin: R-shaped or cotter-type pin prevents striker release during transport
  • Tripwire Attachment: Ring or loop for tripwire connection to striker pin
Arming Sequence
  1. Mine body placed on stake and stake driven into ground
  2. Fuze inserted into mine body
  3. Tripwire attached to striker retaining pin
  4. Tripwire anchored to fixed object (tree, stake, etc.)
  5. Safety pin removed to arm mine
Activation Method
  • Tripwire pulled by victim
  • Striker retaining pin extracted
  • Spring-loaded striker drives firing pin into detonator
  • Detonator initiates 75g TNT main charge
  • Cast-iron body fragments at high velocity
Anti-Handling Devices
  • Standard POMZ-2 does not include integral anti-handling devices
  • May be booby-trapped by placing additional mine or grenade beneath the stake
  • MUV-series fuzes can be fitted with MD-5M anti-disturbance device (tilt-sensitive)

History of Development and Use

Development Background

The POMZ-2 was developed by Soviet military engineers in the early 1940s as the Red Army sought simple, mass-producible defensive weapons to counter German advances. The design philosophy emphasized ease of manufacture, minimal materials, and effectiveness in creating barrier minefields.

Design Evolution
  • POMZ (Original): First variant introduced circa 1941-1942
  • POMZ-2: Improved version with better fragmentation pattern and standardized fuze compatibility; became the primary production variant
  • POMZ-2M: Post-war modernization with improved fuze well threading and manufacturing quality
Combat Deployment History
  • World War II (1941-1945): Extensively deployed by Soviet forces on the Eastern Front; used in massive defensive minefields during German offensives
  • Korean War (1950-1953): Used by North Korean and Chinese forces
  • Vietnam War (1955-1975): Employed by North Vietnamese and Viet Cong forces throughout the conflict
  • Soviet-Afghan War (1979-1989): Used by both Soviet forces and Mujahideen
  • African Conflicts: Proliferated throughout numerous African civil wars and insurgencies
  • Balkans Conflicts (1990s): Found in minefields throughout former Yugoslavia
  • Middle Eastern Conflicts: Encountered in numerous regional wars and insurgencies
Production and Proliferation
  • Produced in enormous quantities by the Soviet Union (millions manufactured)
  • Licensed and unlicensed production in over a dozen countries
  • One of the most widely distributed landmines in history
  • Remains in stockpiles and minefields worldwide
Current Status
  • No longer in production in Russia
  • Still found in legacy minefields globally
  • Active clearance operations continue in many countries
  • Classified as a victim-activated fragmentation mine under Ottawa Treaty (prohibited for signatory nations)

Technical Specifications

SpecificationValue
Explosive FillTNT
Explosive Weight75 grams (2.6 oz)
Body MaterialCast iron
Total Weight1.5-2 kg (3.3-4.4 lbs) with stake
Body Weight~1.2 kg (2.6 lbs)
Operating Temperature-40°C to +50°C
Tripwire Activation Force1-5 kg (2.2-11 lbs)
Fragment Count~200-400 fragments
Fragment Velocity~600-800 m/s
Shelf LifeIndefinite (body); fuzes may degrade
Lethal Radius4-6 meters
Casualty Radius15-25 meters

Frequently Asked Questions

Q: Why was the POMZ-2 designed as a stake-mounted mine rather than a buried mine? A: The above-ground, stake-mounted design serves multiple tactical purposes. First, it positions the fragmentation body at approximately waist height, maximizing the effectiveness of horizontal fragment dispersion against standing personnel. Second, the design allows for rapid deployment without digging, crucial for quickly establishing defensive barriers. Third, the tripwire activation method is highly effective in vegetation and terrain where buried pressure mines might not function reliably. The visibility of the mine also serves as a psychological deterrent in some defensive applications.

Q: How does the POMZ-2 differ from bounding fragmentation mines like the Soviet OZM series? A: Unlike bounding mines (such as the OZM-72) that launch into the air before detonating, the POMZ-2 is a static fragmentation mine that detonates in place. Bounding mines use a propellant charge to lift the main body to approximately 1-2 meters height before the main charge detonates, creating a more effective fragment pattern against prone or crouched personnel. The POMZ-2’s simpler design makes it cheaper and easier to manufacture but somewhat less effective against personnel who might drop to the ground upon hearing a tripwire. However, the POMZ-2’s waist-high mounting partially compensates for this limitation.

Q: What makes the MUV-series fuzes particularly hazardous for EOD personnel? A: MUV-series fuzes present several challenges. They are pull-friction fuzes with relatively simple mechanisms that can become unpredictable with age. The striker spring remains under tension indefinitely, and corrosion can weaken the striker retaining pin to the point of spontaneous release. Additionally, the fuzes can be fitted with anti-disturbance devices (like the MD-5M) that add tilt sensitivity, making any movement of the mine potentially lethal. Field-expedient booby-trapping of POMZ-2 mines was also common, with additional explosive charges placed beneath the stake.

Q: Why does the POMZ-2 have a distinctive grooved pattern on its body? A: The horizontal and vertical grooves (or serrations) cast into the mine body create pre-formed fragmentation lines. When the explosive charge detonates, the cast-iron body breaks apart preferentially along these scored lines, producing fragments of relatively consistent size and shape. This controlled fragmentation maximizes the number of lethal fragments and ensures more predictable fragment distribution compared to a smooth-cased explosive that might break into irregular, less effective pieces.

Q: How long can a POMZ-2 remain dangerous after emplacement? A: The POMZ-2 can remain lethal for decades after emplacement. The cast-iron body is highly resistant to corrosion, and the TNT explosive fill is chemically stable. While wooden stakes may rot away (potentially causing the mine to fall and detonate, or simply become concealed in undergrowth), the mine body itself can remain functional for 50+ years. POMZ-2 mines from World War II continue to be recovered in Eastern Europe and remain capable of detonation. The primary degradation concerns are fuze reliability and tripwire condition, though even degraded fuzes may function or become more sensitive with age.

Q: What is the significance of the POMZ-2 in landmine proliferation history? A: The POMZ-2 represents one of the most successful and widely copied landmine designs in history. Its simple construction from readily available materials (cast iron, wood, and basic fuze components) made it ideal for mass production and transfer to allied nations. The design was copied by China (Type 59), manufactured throughout the Warsaw Pact, and appeared in conflicts on every continent. This proliferation contributed significantly to the global landmine contamination problem and influenced the international movement toward landmine prohibition that resulted in the 1997 Ottawa Treaty.

Q: Can the POMZ-2 be detected by metal detectors? A: Yes, the POMZ-2 is relatively easy to detect with metal detectors due to its substantial cast-iron body. However, several factors complicate clearance operations: the mine may be positioned in areas with high metal contamination (battlefield debris, shell fragments); the tripwire may extend well beyond the metal detector’s detection range, potentially triggering the mine before the body is detected; and the wooden stake produces no metal signature, meaning the mine’s actual position may not be precisely indicated. Additionally, in heavily vegetated areas, the tripwire itself is often the greatest threat, as it may be encountered before the mine body is located.

Q: What is the proper response upon encountering a suspected POMZ-2 in the field? A: Upon encountering or suspecting a POMZ-2: Stop immediately and do not move forward. Carefully look for tripwires at various heights (they may sag over time or be placed at unconventional heights). Do not attempt to touch, move, or disarm the device. Mark the location if safely possible without approaching closer. Retrace your steps carefully, watching for additional tripwires. Report the location with GPS coordinates if available. Contact appropriate EOD or demining authorities. Only trained EOD personnel with proper equipment should approach or attempt to neutralize POMZ-2 mines.

SAFETY NOTICE: This lesson is intended for educational and training purposes. All ordnance should be considered dangerous until proven safe by qualified personnel. Unexploded ordnance should never be handled by untrained individuals—report findings to military or law enforcement authorities.