PMN-2 Anti-Personnel Mine

Ordnance Overview

The PMN-2 (Protivopekhotnaya Mina Nazhimnogo Deystviya-2 – Anti-Personnel Mine with Pressure Action-2) is the modernized successor to the widely-deployed PMN mine. Developed in the 1970s, the PMN-2 incorporated lessons learned from decades of the original PMN’s deployment while maintaining the core design philosophy of simplicity, reliability, and low detectability. The PMN-2 represents an evolution rather than revolution in Soviet mine design – refining the proven PMN concept with improved materials, better weatherproofing, and enhanced resistance to both detection and accidental activation. Like its predecessor, the PMN-2 has been widely proliferated internationally and continues to pose a significant humanitarian threat in former conflict zones.

Country/Bloc of Origin

  • Country: Soviet Union (USSR)
  • Development Period: 1970s (entered service circa 1972-1973)
  • Bloc: Warsaw Pact countries
  • Post-Soviet: Continued production in Russian Federation
  • International Production:
    • Licensed production in multiple former Warsaw Pact nations
    • Unlicensed copies produced by:
      • Iraq
      • Iran
      • North Korea
      • Syria
      • Other nations with Soviet military connections

Ordnance Class

  • Type: Landmine
  • Primary Role: Anti-Personnel (AP) blast mine
  • Sub-Category: Pressure-activated blast mine
  • Deployment Method: Hand-emplaced, typically buried shallow or surface-laid
  • Target: Personnel/infantry
  • Effect: Blast injury to lower extremities, severe foot/leg trauma or amputation
  • Generation: Second-generation Soviet AP mine (successor to PMN)

Ordnance Family/Nomenclature

Official Designations:

  • PMN-2: Primary Soviet/Russian designation
  • PMN-2M: Modified variant with slightly different fuzing

Family Relationship:

  • Predecessor: PMN (original 1950s design)
  • Successor: PMN-3 (limited production)
  • Contemporary: Part of broader Soviet mine family including PMN-4

Related Mines:

  • PMN: Original design from 1955
  • PMN-3: Further modernized variant (less common)
  • PMN-4: More recent development with additional features

Common Names:

  • Generally referred to simply as “PMN-2”
  • Sometimes called “improved PMN” or “new-pattern PMN”

NATO Stock Numbers:

  • Various numbers assigned based on discovery/documentation

Physical Markings:

  • Cyrillic manufacturing stamps on some examples
  • Production codes and dates (when present)
  • Many field examples lack clear markings due to weathering

Hazards

Primary Hazards

Blast Effects:

  • Contains 100 grams (3.5 oz) of TG-40 explosive composition
    • TG-40: RDX/TNT mixture (more powerful than pure TNT)
    • More efficient explosive than PMN’s TNT
    • Smaller charge produces similar effect due to better explosive
  • Designed to destroy or sever the foot and lower leg
  • Blast zone extends approximately 1-2 meters (3-7 feet)
  • Primary effect: traumatic amputation or severe destruction of foot/leg
  • Secondary effects: fragmentation wounds from displaced soil and debris

Activation Sensitivity:

  • Operating Pressure: 5.4 kg minimum (approximately 12 lbs)
  • Typical activation range: 5-8 kg (11-18 lbs)
  • Lower pressure threshold than PMN (which was 5-25 kg)
  • More consistent activation pressure than original PMN
  • Can be triggered by adult footfall
  • Generally less likely than PMN to be triggered by small animals or debris

Environmental Stability:

  • Extremely Durable: Modern plastic body highly resistant to degradation
  • Weatherproof: Improved sealing over original PMN
  • Can remain functional for 30+ years (less long-term data than PMN due to later introduction)
  • Operates in temperature extremes: -40°C to +65°C
  • Resistant to moisture, humidity, and precipitation
  • UV-resistant plastic maintains integrity longer than Bakelite

UXO Concerns:

  • Critical Danger: All PMN-2 mines must be treated as live
  • No self-destruct mechanism: Remains dangerous indefinitely
  • Detection difficulty: Zero or near-zero metal content (even less than PMN)
  • Commonly encountered in:
    • Afghanistan (Soviet deployment 1979-1989 and post-Soviet conflicts)
    • Chechnya
    • Nagorno-Karabakh
    • Ukraine (recent conflicts)
    • Middle Eastern conflict zones
    • Areas of former Soviet influence

Special Hazards:

  • Virtually undetectable by metal detectors: Absolutely minimal metal signature
  • Improved reliability: More consistent functioning than PMN means higher chance of detonation
  • Booby-trap integration: Can be fitted with anti-handling devices (non-standard)
  • Long-term stability: Improved construction means remains dangerous for decades
  • Mine field integration: Often deployed in combination with anti-tank mines
Kill/Injury Radius
  • Primary blast zone: Contact to 0.5 meters – severe to fatal injuries
  • Serious injury radius: 0.5 to 1.5 meters – severe trauma, possible amputation
  • Secondary fragment hazard: 1.5 to 3 meters – injuries from debris
  • Potential flying debris: Up to 5 meters in loose soil conditions
Comparison to PMN

The PMN-2 represents similar but slightly reduced blast radius due to:

  • Smaller explosive charge (100g vs 240g)
  • More efficient explosive composition
  • Similar practical effect on target (foot/leg destruction)
  • Slightly reduced overpressure zone

Key Identification Features

Physical Dimensions
  • Diameter: 119 mm (4.7 inches) – slightly larger than PMN
  • Height: 53 mm (2.1 inches) – slightly lower profile than PMN
  • Weight: Approximately 400-420 grams (0.88-0.93 lbs) – lighter than PMN
  • Explosive Content: 100 grams of TG-40
Visual Characteristics

Shape:

  • Circular, low-profile cylinder
  • Distinctive ribbed or ridged pressure plate (key identifier vs PMN)
  • Wider diameter than PMN (119mm vs 112mm)
  • Slightly flatter profile
  • Pressure plate has concentric circular ridges (not smooth like PMN)

Color:

  • Standard: Olive drab/dark green
  • Made from modern reinforced plastic (not Bakelite)
  • Color may be:
    • Dark green (most common)
    • Olive brown
    • Dark gray
    • Black (some variants)
  • Surface has matte or semi-matte finish
  • Color more uniform and stable than PMN due to better plastic

Construction Materials:

  • Body: Modern reinforced plastic/polymer
  • Pressure plate: Hard plastic with distinctive ridges
  • Fuze components: Minimal to zero metal
  • Detonator housing: Plastic
  • Main charge: TG-40 explosive composition (RDX/TNT mix)

Distinctive Features Compared to PMN:

  1. Ridged/ribbed pressure plate: Most obvious identifier
    • Concentric circular grooves or ridges on top surface
    • PMN has smooth domed pressure plate
    • Provides better grip/traction
  2. Wider diameter: 119mm vs PMN’s 112mm
  3. Lower profile: 53mm vs PMN’s 56mm
  4. Different color: Usually olive/green vs PMN’s black/brown
  5. Plastic quality: Modern smooth plastic vs Bakelite texture
  6. No visible metal: Even firing pin is plastic or minimal metal

Markings:

  • Manufacturing stamps (often Cyrillic, may be absent)
  • Production year codes (when present)
  • Lot numbers on base (frequently weathered away)
  • No standardized color-coding system
Field Identification Critical Points

Positive identification of PMN-2 vs PMN:

  • RIDGED pressure plate = PMN-2
  • SMOOTH pressure plate = PMN
  • Olive/green color (usually) = PMN-2
  • Black/dark brown (usually) = PMN
  • Wider diameter = PMN-2

Treatment: If unsure between PMN and PMN-2, treat as most dangerous possibility (PMN-2 due to better reliability)

Fuzing Mechanisms

Primary Fuze System

Type: Mechanical pressure fuze (MD-9 or similar mechanism)

Key Design Features:

  • Zero metal construction in many versions (entire fuze can be plastic)
  • More refined mechanism than PMN
  • Improved consistency in activation pressure
  • Better sealed against environmental contamination

Components:

  1. Ridged pressure plate (recognition feature and functional surface)
  2. Improved compression spring mechanism
  3. Plastic striker assembly (may have minimal metal firing pin tip)
  4. Enhanced detonator housing
  5. Safety device (various types depending on variant)
Arming Sequence

Safe State (as stored/transported):

  1. Mine shipped with safety mechanism in place
  2. Various safety types exist:
    • Safety pin (similar to PMN)
    • Safety clip
    • Arming plug that must be removed
  3. Pressure plate mechanism locked/blocked
  4. Striker cannot reach detonator

Arming Procedure:

  1. Operator places mine in desired position
  2. Safety device is removed (exact method varies by production batch)
  3. Some variants may have arming delay (few minutes) – non-standard
  4. Once armed, mine is immediately functional

Critical Note: Like the PMN, once armed, the PMN-2 typically has no delay – it is live immediately

Activation/Functioning Sequence

Trigger Process:

  1. Pressure applied to ridged plate: 5.4-8 kg force
  2. Pressure plate depresses (approximately 3-5mm travel)
  3. Internal spring resistance overcome
  4. Striker released or driven forward
  5. Striker impacts detonator
  6. Detonator flash initiates main charge (TG-40)
  7. Main charge detonates
  8. Total time: <0.01 seconds from pressure to detonation

Operating Principle: Similar to PMN but with improved consistency and reliability in activation pressure

Safety Features

Primary Safety Device:

  • Removable safety mechanism (design varies)
  • Must be deliberately removed to arm
  • Cannot easily be accidentally removed
  • Once removed, mine is armed (some variants may have brief arming delay)

Improvements Over PMN:

  • Better protected internal mechanism
  • Less susceptible to accidental activation from side pressure
  • Improved environmental sealing prevents internal corrosion/contamination
  • More consistent performance across temperature ranges

Limitations:

  • No self-destruct: Mine remains active indefinitely
  • No self-neutralization: Will not deactivate over time
  • No anti-handling device (standard): Can be cleared by trained personnel
    • Non-standard variants may have AHD modifications
  • No remote deactivation: Once armed, must be physically dealt with
Detection and Countermeasures Resistance

Metal Detector Avoidance:

  • Zero or near-zero metal signature
  • Even more difficult to detect than original PMN
  • Some variants have completely plastic firing train
  • Requires alternative detection methods:
    • Ground-penetrating radar (GPR)
    • Prodding/probing
    • Mine detection dogs
    • Advanced electromagnetic sensors

History of Development and Use

Development Background

Origins (Late 1960s – Early 1970s):

  • Development began in late 1960s as PMN modernization program
  • Entered service approximately 1972-1973
  • Responded to several needs:
    • Improving reliability and consistency of PMN
    • Reducing production costs further
    • Decreasing weight for easier transport
    • Making mine even harder to detect
    • Updating to modern materials (move away from Bakelite)

Design Goals:

  1. Maintain PMN’s proven effectiveness
  2. Reduce metal content even further
  3. Improve environmental resistance
  4. Standardize production across facilities
  5. Enable even faster deployment
  6. Increase shelf life and field reliability

Engineering Improvements:

  • Modern plastic body (stronger, lighter than Bakelite)
  • Refined fuzing mechanism for consistent activation
  • Better sealing against moisture and contamination
  • Improved quality control in manufacturing
  • More efficient explosive composition (TG-40 vs TNT)
Production and Distribution

Manufacturing:

  • Initial production: Early 1970s (Soviet Union)
  • Peak production: 1970s-1980s
  • Estimated Soviet production: Several million units
  • Post-Soviet production: Continued in Russia and former Soviet states
  • Total global production: Difficult to estimate due to unlicensed copies

International Proliferation: The PMN-2 was distributed widely through:

  • Warsaw Pact military cooperation agreements
  • Soviet military aid to allied nations
  • Sales to Soviet-aligned countries
  • Technology transfer to allied defense industries
  • Post-Soviet sales and transfers

Recipients included:

  • All Warsaw Pact nations
  • Afghanistan (ironically, provided to Soviet forces, later captured by mujahideen)
  • Middle Eastern allies (Syria, Iraq, Libya)
  • African nations with Soviet ties
  • Asian communist nations
  • Various insurgent groups supported by USSR
Combat History and Deployment

Soviet-Afghan War (1979-1989):

  • Extensive PMN-2 deployment alongside original PMN
  • Used for perimeter defense of Soviet bases
  • Laid along supply routes and strategic roads
  • Deployed in mountains and valleys to control movement
  • Many remain in place, causing casualties decades later

Post-Soviet Conflicts:

First Chechen War (1994-1996):

  • Used by both Russian forces and Chechen fighters
  • Extensive mining of approach routes to positions
  • Urban and rural deployment
  • Significant clearance challenges remain

Second Chechen War (1999-2009):

  • Continued extensive use
  • Mine strikes remained common throughout conflict
  • Post-conflict UXO clearance ongoing

Nagorno-Karabakh Conflicts:

  • Initial conflict (1988-1994): extensive deployment
  • 2020 conflict: encountered as UXO from earlier fighting
  • Both sides used Soviet-era stockpiles including PMN-2

Ukraine Conflict (2014-present):

  • PMN-2 mines documented in use
  • Both as legacy stockpiles and current deployment
  • Significant clearance challenge for affected regions
  • Mixed with more modern mine systems

Middle Eastern Conflicts:

  • Iran-Iraq War: Extensive use by Iraq
  • Gulf Wars: Iraqi stockpiles included PMN-2
  • Syrian Civil War: Present in various faction stockpiles
  • Yemeni conflicts: Deployed in various regional conflicts

Other Regions:

  • Central Asian conflicts
  • African regional wars (where Soviet weapons transferred)
  • Southeast Asian insurgencies (limited numbers)
Tactical Employment

Military Doctrine:

  • Area denial around key positions
  • Channeling enemy movement into kill zones
  • Protecting flanks and rear areas
  • Mixed minefields with anti-tank mines (PMN-2 for personnel, TM-series for vehicles)
  • Rapid defensive mining capability for infantry units

Deployment Patterns:

  • Nuisance mining: Scattered individual mines to slow enemy advance
  • Protective belts: Dense mine belts around defensive positions
  • Mixed fields: Combined with other mine types for comprehensive denial
  • Pattern vs random: Both systematic patterns and random scatter used depending on situation
Current Status

Operational Status:

  • Still in active stockpiles of numerous nations
  • Officially superseded by newer designs in Russian military
  • Continues to be encountered in clearance operations
  • Production continues in some countries

Humanitarian Impact:

  • Long-term UXO threat: Decades-old PMN-2s remain functional
  • Clearance challenges: Low detectability complicates demining
  • Casualty rates: Continues to kill and injure civilians in former conflict zones
  • Economic impact: Contaminated land unusable for agriculture or development

Mine Ban Treaty Implications:

  • Subject to 1997 Ottawa Treaty (Mine Ban Treaty) for signatory nations
  • Major powers (Russia, USA, China) did not sign treaty
  • PMN-2 stockpiles in non-signatory nations remain available for use
  • Clearance operations ongoing in affected countries
Comparison to PMN Legacy

Similarities:

  • Both pose decades-long humanitarian threats
  • Both extremely difficult to detect
  • Both simple, reliable, and effective
  • Both widely proliferated globally

Differences in Impact:

  • PMN-2 has shorter deployment history (introduced later)
  • Fewer PMN-2s in ground than original PMN (due to later introduction)
  • PMN-2 potentially more reliable over time (better materials)
  • PMN-2 contamination concentrated in more recent conflicts

Technical Specifications

Explosive Characteristics

Main Charge:

  • Type: TG-40 explosive composition
    • Mixture: RDX (cyclotrimethylenetrinitramine) and TNT
    • RDX/TNT ratio: Approximately 50/50 or 60/40 (varies by production)
  • Weight: 100 grams (3.5 oz)
  • Detonation Velocity: ~7,500-7,800 m/s (higher than pure TNT at 6,900 m/s)
  • Relative Effectiveness: More powerful per gram than TNT
    • 100g of TG-40 ≈ comparable effect to 150-180g TNT
  • Blast Characteristics: Focused upward cone, optimized for anti-personnel effect

Why TG-40 Instead of TNT?

  • Higher detonation velocity (more damage)
  • More consistent performance
  • Better stability in storage
  • Allows smaller charge weight (lighter mine, easier transport)
  • Still achieves desired effect (foot/leg destruction)

Detonator:

  • Type: Sensitive primary explosive composition
  • Housing: Plastic (contributes to zero-metal design)
  • Function: Initiates main charge from striker impact
  • Sensitivity: Optimized for reliable initiation from mechanical striker
Physical Characteristics

Overall Dimensions:

  • Diameter: 119 mm (4.7 inches)
  • Height: 53 mm (2.1 inches)
  • Weight (total): 400-420 grams (0.88-0.93 lbs)
    • Lighter than PMN (550g) due to less explosive and modern materials
  • Weight (explosive): 100 grams

Material Composition:

Body/Case:

  • Material: Modern reinforced plastic/polymer
    • Polyethylene or similar thermoplastic
    • UV-stabilized formulation
  • Advantages over Bakelite (used in PMN):
    • Lighter weight
    • More consistent quality
    • Better environmental resistance
    • Easier to manufacture with modern injection molding
    • More resistant to cracking with age
    • Better sealing properties

Pressure Plate:

  • Material: Hard plastic with ribbed surface
  • Ribs/ridges: Concentric circles for structural strength and identification
  • Function: Distributes pressure to fuze mechanism
  • Advantage: Ribbed design prevents slipping and provides better structural integrity

Metal Content:

  • Minimal to Zero: Depending on production batch
    • Some versions: small metal firing pin tip (~1-2 grams)
    • Some versions: completely plastic firing train
  • Detection Profile: Essentially invisible to standard metal detectors
  • Design Intent: Maximize difficulty of detection and clearance
Operating Parameters

Activation Pressure:

  • Minimum Specification: 5.4 kg (12 lbs)
  • Typical Range: 5-8 kg (11-18 lbs)
  • Comparison to PMN: More consistent, narrower range (PMN was 5-25 kg)
  • Practical Meaning:
    • Reliably triggered by adult human (70-80 kg body weight concentrated on ~200-300 cm² footprint)
    • Generally resistant to animals smaller than medium dogs
    • More consistent performance than PMN

Environmental Operating Range:

  • Temperature Range: -40°C to +65°C (-40°F to +149°F)
  • Humidity: Functions in 0-100% humidity
  • Water Resistance: Can function when partially submerged
  • Altitude: No significant limitations
  • Shelf Life: Decades (30+ years documented)
  • Functional Life After Deployment: 30+ years (less data than PMN due to later introduction, but improved materials suggest equal or better longevity)

Reliability:

  • Functional Rate: Very high (>95% activation when triggered)
  • Dud Rate: Very low (<5%)
  • Improved Consistency: Better than original PMN due to refined manufacturing
Deployment Specifications

Emplacement:

  • Time per mine: 20-45 seconds for trained personnel
    • Faster than PMN due to lighter weight
  • Method: Hand-placed by infantry or engineers
  • Concealment Options:
    • Surface-laid (can be concealed under debris, vegetation)
    • Shallow burial (5-10 cm depth typical)
    • Can be camouflaged with natural materials

Transport:

  • Packaging: Multiple mines per container (varies by military)
  • Weight advantage: Lighter than PMN allows more mines per load
  • Logistics: One soldier can carry more PMN-2s than PMNs

Deployment Density:

  • Tactical mining: 1-3 mines per linear meter in defensive belts
  • Area coverage: Variable based on terrain and tactical situation
  • Pattern types:
    • Systematic rows
    • Random scatter
    • Mixed patterns with anti-tank mines
  • Speed: Trained team can lay extensive fields quickly
Comparative Specifications
SpecificationPMN-2PMN (Original)
Weight400-420g550g
Explosive100g TG-40240g TNT
Diameter119mm112mm
Height53mm56mm
Metal content0-2g~7g
Pressure range5-8 kg5-25 kg
Body materialModern plasticBakelite
Pressure plateRidgedSmooth
Introduction1972-731955

Frequently Asked Questions

Q: What are the main improvements of the PMN-2 over the original PMN mine?

A: The PMN-2 represents a refined evolution of the PMN design with several key improvements. First, it uses modern reinforced plastic instead of Bakelite, making it lighter (400g vs 550g), more durable, and more environmentally resistant. Second, the explosive fill was changed to TG-40 (an RDX/TNT mixture) which is more powerful than pure TNT, allowing the mine to be just as effective with only 100 grams of explosive versus the PMN’s 240 grams. Third, the fuzing mechanism was refined to provide more consistent activation pressure (5-8 kg) compared to the PMN’s wider range (5-25 kg), making the PMN-2 more reliable. Fourth, the PMN-2 has even less metal content than the PMN – some variants use an entirely plastic firing train with zero metal – making it virtually undetectable by metal detectors. Finally, improved sealing and weatherproofing means better long-term reliability. However, these “improvements” from a military perspective translate to an even more persistent humanitarian threat, as the PMN-2 is harder to detect, clear, and remains functional for decades.

Q: How can you tell the difference between a PMN and PMN-2 in the field?

A: The most reliable visual identifier is the pressure plate surface texture. The PMN-2 has distinctive concentric circular ridges or grooves on its pressure plate, giving it a ribbed appearance, while the original PMN has a smooth, slightly domed pressure plate. Additionally, the PMN-2 is typically olive green or dark green in color, whereas the PMN is usually black or very dark brown (due to its Bakelite construction). The PMN-2 is also slightly wider (119mm vs 112mm diameter) and has a lower profile (53mm vs 56mm height). The PMN-2’s plastic body has a more modern, uniform appearance compared to the PMN’s Bakelite which may show surface crazing or texture irregularities. However, in the field, if you encounter any suspected mine, DO NOT approach closely to examine these features – mark the area and report to authorities. From a safe distance, binoculars can help identify the ribbed vs smooth pressure plate characteristic, but never risk approaching to confirm identification.

Q: Why did Soviet engineers reduce the explosive charge from 240g to 100g in the PMN-2?

A: The reduction from 240 grams (PMN) to 100 grams (PMN-2) wasn’t about reducing effectiveness – it was about efficiency and modernization. The PMN-2 uses TG-40, a more powerful explosive composition (RDX/TNT mixture) rather than pure TNT. TG-40 has a higher detonation velocity (7,500-7,800 m/s vs 6,900 m/s for TNT) and greater brisance (shattering effect), meaning it produces more damage per gram. Through testing, Soviet engineers determined that 100 grams of TG-40 achieves the same tactical effect as 240 grams of TNT – namely, destroying or severing a human foot and lower leg. This reduction brought several advantages: (1) lighter mine weight (400g vs 550g) allowing soldiers to carry more mines, (2) reduced material costs, (3) easier and safer manufacturing, and (4) potentially reduced detection profile since there’s less explosive mass. The mine remains just as lethal to its intended target while being more efficient from a logistics and production standpoint.

Q: Is the PMN-2 covered by the international Mine Ban Treaty?

A: Yes, the PMN-2 is absolutely covered by the 1997 Ottawa Treaty (formally the “Convention on the Prohibition of the Use, Stockpiling, Production and Transfer of Anti-Personnel Mines and on their Destruction”). This treaty, which entered into force in 1999, bans all anti-personnel mines regardless of type or origin. Countries that signed and ratified the treaty are required to destroy their stockpiles of PMN-2 mines, cease production, and clear PMN-2 mines from their territory. However, there’s a critical limitation: major military powers including Russia (the PMN-2’s country of origin), the United States, China, India, and Pakistan have NOT signed the treaty. This means Russia legally retains its PMN-2 stockpiles under international law, and other non-signatory nations can continue to possess and potentially use these mines. The treaty has been successful in reducing global mine use, but the PMN-2 remains in the arsenals of several militaries and continues to be encountered in clearance operations in countries affected by conflicts where it was previously deployed.

Q: Can detection dogs find PMN-2 mines even though they have no metal?

A: Yes, mine detection dogs (MDDs) are one of the most effective methods for locating PMN-2 mines despite their zero-metal construction. Dogs don’t detect the metal content – instead, they’re trained to identify the scent signature of the explosive compounds and other mine components. The TG-40 explosive in the PMN-2, the plastic body materials, and various chemical components all emit volatile organic compounds (VOCs) that trained dogs can detect. Research has shown that dogs can reliably detect explosives in concentrations as low as parts per trillion. While the PMN-2’s sealed construction reduces scent emission compared to some mines, micro-permeation through plastic over time, along with scent molecules in the surrounding soil, provide sufficient odor for trained detection dogs. MDDs are particularly valuable in PMN-2 clearance because metal detectors are largely ineffective, and ground-penetrating radar can give ambiguous results. However, dog effectiveness can be reduced by extreme weather, soil conditions, and the handler’s skill, so MDDs are typically used as part of a multi-method detection approach rather than as the sole detection tool.

Q: How long can a PMN-2 mine remain dangerous after being laid?

A: The PMN-2 can remain fully functional and lethal for 30+ years or more after emplacement, and potentially much longer. Several factors contribute to this remarkable longevity. First, the modern plastic body is highly resistant to environmental degradation – unlike metal which corrodes or Bakelite which can become brittle, modern polymers maintain their integrity for decades when buried or exposed. Second, TG-40 explosive is extremely chemically stable and doesn’t degrade significantly over time. Third, the purely mechanical fuzing system has no batteries, electronics, or perishable components – it’s essentially just springs and a striker that don’t degrade. Fourth, the improved sealing of the PMN-2 prevents water infiltration and contamination of internal components. While we have more long-term data on the original PMN (which remains functional after 50+ years), the improved materials in the PMN-2 suggest equal or better longevity. This creates a devastating long-term humanitarian problem: PMN-2 mines laid in conflicts from the 1970s-1990s remain active today, and those laid recently will threaten civilian populations for decades to come. There is no self-destruct mechanism, so the mine will remain dangerous until it is deliberately cleared or happens to detonate.

Q: Why is the PMN-2 so difficult to clear compared to other mines?

A: The PMN-2 presents exceptional clearance challenges due to a combination of factors specifically designed into the mine. First and most significantly, its zero or near-zero metal content makes it virtually invisible to metal detectors, which are the standard tool for most mine detection. Even advanced metal detectors with high sensitivity will struggle to detect the 1-2 grams of metal in some PMN-2 variants, and completely fail on all-plastic versions. This forces clearance teams to rely on alternative methods: ground-penetrating radar (which is slower and can give ambiguous results in certain soil types), manual prodding (extremely dangerous and slow), or mine detection dogs (effective but weather and terrain dependent). Second, the PMN-2’s low profile (only 53mm high) and ability to be buried 5-10cm deep makes it difficult to identify visually or with radar. Third, its durable construction means it doesn’t degrade and produce obvious visual markers like rust staining or subsidence. Fourth, PMN-2 mines were often laid in high density during conflicts, creating extensive contaminated areas requiring systematic clearance. Finally, the mine’s reliability means that even very old PMN-2s must be treated as functional, so every suspected item must be approached with maximum caution. These factors combine to make PMN-2 clearance extremely slow, expensive (hundreds of dollars per mine cleared), and dangerous for clearance personnel.

Q: What happens if you step on a PMN-2 mine – could it be a “dud” or is it almost always going to detonate?

A: The unfortunate reality is that the PMN-2 has a very high reliability rate – when triggered, it detonates approximately 95% or more of the time. This is one of the “successes” of Soviet engineering – the PMN-2’s refined design, quality control improvements over the PMN, and mechanical simplicity result in very few duds. The scenarios where a PMN-2 might NOT detonate when stepped on are limited: (1) extremely rare manufacturing defect, (2) the detonator was somehow damaged during emplacement or degraded over time (very uncommon), (3) the mine was deliberately disabled by clearance personnel, or (4) the pressure applied was below the activation threshold (5.4 kg minimum – possible for a small child, though still very dangerous). If the mine is triggered properly, the mechanical fuze functions nearly instantaneously, and the detonation follows within milliseconds. The TG-40 explosive is stable and reliable even after decades. There is essentially no concept of “lucky escapes” with PMN-2 mines – if triggered with sufficient pressure, detonation is nearly certain. This is precisely why encountering these mines is so deadly, and why clearance operations treat every PMN-2 as live ordnance regardless of its age or apparent condition. The best outcome is to never encounter one, which is why public mine awareness education in affected areas is critical.

Q: What should I do if I suspect I’ve found a PMN-2 or similar mine?

A: If you suspect you’ve encountered a PMN-2 or any landmine, follow these critical steps immediately:

  • STOP MOVING: Freeze in place. Don’t take another step forward or backward. Mines are often laid in patterns, and the ground around a visible mine may contain others.
  • WARN OTHERS: Loudly alert anyone nearby to stop and stay away. Keep everyone at least 25-50 meters from the suspected mine if possible.
  • CAREFULLY RETREAT: If you’re certain of the path you took to reach the spot (and only if you’re certain), carefully retrace your exact steps backward. Place your feet only in footprints you already made. If uncertain, stay put and call for help.
  • MARK THE AREA: From a safe distance, mark the location with bright cloth, rocks arranged in an arrow, or improvised warning signs so others avoid the area. Don’t approach the mine to mark it.
  • REPORT IMMEDIATELY: Contact local authorities, police, military, or UN Mine Action Service (in areas with active clearance programs). Provide precise location information.
  • NEVER:
    • Touch, move, or disturb the mine
    • Throw rocks at it
    • Take photographs close-up
    • Attempt to disarm it yourself
    • Return to the area

Even if the object looks old, corroded, or damaged, treat it as live. In former conflict zones, educate yourself about mine awareness signs and avoid areas marked as contaminated. Your life is not worth satisfying curiosity or retrieving an item from a mined area.


Safety Reminder

All ordnance, including the PMN-2 mine, must be considered extremely dangerous and potentially lethal. If you encounter any suspected explosive device:

  1. DO NOT TOUCH, MOVE, OR DISTURB IT
  2. Stop immediately and do not move forward
  3. Carefully retrace your steps if safe to do so
  4. Mark the area clearly from a safe distance
  5. Warn others to stay away
  6. Report immediately to local authorities, military, police, or UN Mine Action
  7. Never return to the area

This information is provided for educational purposes, identification training, and humanitarian mine awareness only. Mine detection, clearance, and disposal must ONLY be performed by trained, certified, and equipped Explosive Ordnance Disposal (EOD) professionals or humanitarian demining organizations with proper authorization.

In Mine-Affected Areas:

  • Stay on marked, cleared roads and paths
  • Never enter areas marked with mine warning signs
  • Educate children about mine dangers
  • Report any suspected mines or UXO immediately
  • Support mine action organizations working in your community