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A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automatically by way of pressure when a target steps on it or drives over it, although other detonation mechanisms are also sometimes used. A land mine may cause damage by direct blast effect, by fragments that are thrown by the blast, or by both. Landmines are typically laid throughout an area, creating a ''minefield'' which is dangerous to cross. The use of land mines is controversial because of their potential as indiscriminate weapons. They can remain dangerous many years after a conflict has ended, harming civilians and the economy. Seventy-eight countries are contaminated with land mines and 15,000–20,000 people are killed every year while many more are injured. Approximately 80% of land mine casualties are civilians, with children as the most affected age group. Most killings occur in times of peace. With pressure from a number of campaign groups organised through the International Campaign to Ban Landmines, a global movement to prohibit their use led to the 1997 Convention on the Prohibition of the Use, Stockpiling, Production and Transfer of Anti-Personnel Mines and on their Destruction, also known as the '' Ottawa Treaty''. To date, 164 nations have signed the treaty, but these do not include China, the Russian Federation, or the United States.


Definition

In the Anti-Personnel Mine Ban Convention (also known as the " Ottawa Treaty") and the "
Protocol on Mines, Booby-Traps and Other Devices The Protocol on Prohibitions or Restrictions on the Use of Mines, Booby-Traps and Other Devices is a United Nations treaty that restricts the use of land mines, remotely delivered mines, and booby traps. It is Protocol II to the 1980 Convention o ...
", a ''mine'' is defined as a "munition designed to be placed under, on or near the ground or other surface area and to be exploded by the presence, proximity or contact of a person or vehicle". Similar in function is the '' booby-trap'', which the protocol defines as "any device or material which is designed, constructed or adapted to kill or injure and which functions unexpectedly when a person disturbs or approaches an apparently harmless object or performs an apparently safe act". Such actions might include opening a door or picking up an object. Normally, mines are mass-produced and placed in groups, while booby traps are improvised and deployed one at a time. Also, booby traps can be non-explosive devices such as punji sticks. Overlapping both categories is the ''
improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mecha ...
'' (IED), which is "a device placed or fabricated in an improvised manner incorporating explosive material, destructive, lethal, noxious, incendiary, pyrotechnic materials or chemicals designed to destroy, disfigure, distract or harass. They may incorporate military stores, but are normally devised from non-military components." Some meet the definition of mines or booby traps and are also referred to as "improvised", "artisanal" or "locally manufactured" mines. Other types of IED are remotely activated, so are not considered mines. ''Remotely delivered mines'' are dropped from aircraft or carried by devices such as artillery shells or rockets. Another type of remotely delivered explosive is the ''
cluster munition A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehic ...
'', a device that releases several sub munitions ("bomblets") over a large area. The use, transfer, production, and stockpiling of cluster munitions is prohibited by the international CCM treaty. If bomblets do not explode, they are referred to as ''unexploded ordnance'' (UXO), along with unexploded artillery shells and other explosive devices that were not manually placed (that is, mines and booby traps are not UXOs). ''Explosive remnants of war'' (ERW) include UXOs and ''abandoned explosive ordnance'' (AXO), devices that were never used and were left behind after a conflict. Land mines are divided into two types: anti-tank mines, which are designed to disable tanks or other vehicles; and anti-personnel mines, which are designed to injure or kill people.


History

The history of land mines can be divided into three main phases: In the ancient world, buried spikes provided many of the same functions as modern mines. Mines using gunpowder as the explosive were used from the Ming dynasty to the American Civil War. Subsequently, high explosives were developed and used in land mines.


Before explosives

Some fortifications in the
Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post-Roman Republic, Republican period of ancient Rome. As a polity, it included large territorial holdings aro ...
were surrounded by a series of hazards buried in the ground. These included ''goads'', foot-long pieces of wood with iron hooks on their ends; ''
lilia Lilia (Latin plural, meaning "lilies" in English; singular, ''lilium'') are pit traps arranged in a quincunx pattern dug by the Roman armies in front of their defences. Frequently they had sharpened stakes set inside them as an extra obstacle to a ...
'' (lilies, so named after their appearance), which were pits in which sharpened logs were arranged in a five-point pattern; and '' abatis'', fallen trees with sharpened branches facing outwards. As with modern land mines, they were "victim-operated", often concealed, and formed zones that were wide enough so that the enemy could not do much harm from outside, but were under fire (from spear throws, in this case) if they attempted to remove the obstacles. A notable use of these defenses was by
Julius Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, an ...
in the
Battle of Alesia The Battle of Alesia or Siege of Alesia (September 52 BC) was a military engagement in the Gallic Wars around the Gallic '' oppidum'' (fortified settlement) of Alesia in modern France, a major centre of the Mandubii tribe. It was fought b ...
. His forces were besieging Vercingetorix, the leader of the Gauls, but Vercingetorix managed to send for reinforcements. To maintain the siege and defend against the reinforcements, Caesar formed a line of fortifications on both sides, and they played an important role in his victory. Lilies were also used by Scots against the English at the
Battle of Bannockburn The Battle of Bannockburn ( gd, Blàr Allt nam Bànag or ) fought on June 23–24, 1314, was a victory of the army of King of Scots Robert the Bruce over the army of King Edward II of England in the First War of Scottish Independence. It wa ...
in 1314, and by Germans at the
Battle of Passchendaele The Third Battle of Ypres (german: link=no, Dritte Flandernschlacht; french: link=no, Troisième Bataille des Flandres; nl, Derde Slag om Ieper), also known as the Battle of Passchendaele (), was a campaign of the First World War, fought by t ...
in the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
. A more easily deployed defense used by the Romans was the caltrop, a weapon 12–15 cm across with four sharp spikes that are oriented so that when it is thrown on the ground, one spike always points up. As with modern antipersonnel mines, caltrops are designed to disable soldiers rather than kill them; they are also more effective in stopping mounted forces, who lack the advantage of being able to carefully scrutinize each step they take (though forcing foot-mounted forces to take the time to do so has benefits in and of itself). They were used by the Jin dynasty in China at the Battle of Zhongdu to slow down the advance of
Genghis Khan Genghis Khan (born Temüjin; ; xng, Temüjin, script=Latn; ., name=Temujin – August 25, 1227) was the founder and first Great Khan (Emperor) of the Mongol Empire, which became the List of largest empires, largest contiguous empire in history a ...
's army;
Joan of Arc Joan of Arc (french: link=yes, Jeanne d'Arc, translit= �an daʁk} ; 1412 – 30 May 1431) is a patron saint of France, honored as a defender of the French nation for her role in the siege of Orléans and her insistence on the coronat ...
was wounded by one in the
Siege of Orléans The siege of Orléans (12 October 1428 – 8 May 1429) was the watershed of the Hundred Years' War between France and England. The siege took place at the pinnacle of English power during the later stages of the war. The city held strategic an ...
; in Japan they are known as ''tetsu-bishu'' and were used by
ninja A or was a covert agent or mercenary in feudal Japan. The functions of a ninja included reconnaissance, espionage, infiltration, deception, ambush, bodyguarding and their fighting skills in martial arts, including ninjutsu.Kawakami, pp. 2 ...
s from the fourteenth century onward. Caltrops are still strung together and used as roadblocks in some modern conflicts.


Gunpowder


East Asia

Starting in the ninth century, the Chinese began centuries of experiments that resulted in
gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). T ...
, an explosive mixture of
sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formul ...
, charcoal and
potassium nitrate Potassium nitrate is a chemical compound with the chemical formula . This alkali metal nitrate salt is also known as Indian saltpetre (large deposits of which were historically mined in India). It is an ionic salt of potassium ions K+ and ...
. Gunpowder was first used in battle in the thirteenth century. An "enormous bomb", credited to Lou Qianxia, was used in 1277 by the Chinese at the Battle of Zhongdu, although it probably had little effect. Gunpowder was difficult to use in mines because it is
hygroscopic Hygroscopy is the phenomenon of attracting and holding water molecules via either absorption or adsorption from the surrounding environment, which is usually at normal or room temperature. If water molecules become suspended among the substance' ...
, easily absorbing water from the atmosphere, and when wet it is no longer explosive. A 14th-century military treatise, the '' Huolongjing'' (fire dragon manual), describes hollow
cast iron Cast iron is a class of iron– carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuri ...
cannonball shells filled with gunpowder. The wad of the mine was made of hard wood, carrying three different fuses in case of defective connection to the touch hole. These fuses were long and lit by hand, so they required carefully timed calculations of enemy movements. The ''Huolongjing'' also describes land mines that were set off by enemy movement. A nine-foot length of bamboo was waterproofed by wrapping it in cowhide and covering it with oil. It was filled with compressed gunpowder and lead or iron pellets, sealed with wax and concealed in a trench. The triggering mechanism was not fully described until the early 17th century. When the enemy stepped onto hidden boards, they dislodged a pin, causing a weight to fall. A cord attached to the weight was wrapped around a drum attached to two steel wheels; when the weight fell, the wheels struck sparks against
flint Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Flint was widely used historically to make stone tools and start ...
, igniting a set of fuses leading to multiple mines. A similar mechanism was used in the first wheellock
musket A musket is a muzzle-loaded long gun that appeared as a smoothbore weapon in the early 16th century, at first as a heavier variant of the arquebus, capable of penetrating plate armour. By the mid-16th century, this type of musket gradually di ...
in Europe as sketched by
Leonardo da Vinci Leonardo di ser Piero da Vinci (15 April 14522 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially rested on ...
around 1500 AD. Another victim-operated device was the "underground sky-soaring thunder", which lured bounty hunters with
halberd A halberd (also called halbard, halbert or Swiss voulge) is a two-handed pole weapon that came to prominent use during the 13th, 14th, 15th, and 16th centuries. The word ''halberd'' is cognate with the German word ''Hellebarde'', deriving from ...
s, pikes, and lances planted in the ground. If they pulled on one of these weapons, the butt end disturbed a bowl underneath and a slow-burning incandescent material in the bowl ignited the fuses. The fuse mechanisms for the above devices were cumbersome and unreliable. By the time Europeans arrived in China, landmines were largely forgotten.


Europe and the United States

At
Augsburg Augsburg (; bar , Augschburg , links=https://en.wikipedia.org/wiki/Swabian_German , label=Swabian German, , ) is a city in Swabia, Bavaria, Germany, around west of Bavarian capital Munich. It is a university town and regional seat of the ' ...
in 1573, three centuries after the Chinese invented the first pressure-operated mine, a German military engineer by the name of Samuel Zimmermann invented the ''Fladdermine'' (flying mine). It consisted of a few pounds of black powder buried near the surface and was activated by stepping on it or tripping a wire that made a
flintlock Flintlock is a general term for any firearm that uses a flint-striking ignition mechanism, the first of which appeared in Western Europe in the early 16th century. The term may also apply to a particular form of the mechanism itself, also know ...
fire. Such mines were deployed on the slope in front of a fort. They were used during the Franco-Prussian War, but were probably not very effective because a flintlock does not work for long when left untended. Another device, the fougasse, was not victim-operated or mass-produced, but it was a precursor of modern fragmentation mines and the claymore mine. It consisted of a cone-shape hole with gunpowder at the bottom, covered either by rocks and scrap iron (''stone fougasse'') or mortar shells, similar to large black powder hand grenades (''shell fougasse''). It was triggered by a flintlock connected to a tripwire on the surface. It could sometimes cause heavy casualties but required high maintenance due to the susceptibility of black powder to dampness. Consequently, it was mainly employed in the defenses of major fortifications, in which role it used in several European wars of the eighteenth century and the
American Revolution The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revoluti ...
. One of the greatest limitations of early land mines was the unreliable fuses and their susceptibility to dampness. This changed with the invention of the
safety fuse The safety fuse is a type of fuse invented and patented by English inventor William Bickford in 1831. Originally it consisted of a "tube" of gunpowder surrounded by a waterproofed varnished jute "rope." It replaced earlier and less reliable metho ...
. Later, ''command initiation'', the ability to detonate a charge immediately instead of waiting several minutes for a fuse to burn, became possible after electricity was developed. An electrical current sent down a wire could ignite the charge with a spark. The Russians claim first use of this technology in the Russo-Turkish War of 1828–1829, and with it the fougasse remained useful until it was superseded by the claymore in the 1960s. Victim-activated mines were also unreliable because they relied on a flintlock to ignite the explosive. The percussion cap, developed in the early 19th century, made them much more reliable, and pressure-operated mines were deployed on land and sea in the
Crimean War The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia. Geopolitical causes of the war included the ...
(1853–1856). During the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States. It was fought between the Union (American Civil War), Union ("the North") and t ...
, the Confederate brigadier general Gabriel J. Rains deployed thousands of "torpedoes" consisting of artillery shells with pressure caps, beginning with the
Battle of Yorktown The Siege of Yorktown, also known as the Battle of Yorktown, the surrender at Yorktown, or the German battle (from the presence of Germans in all three armies), beginning on September 28, 1781, and ending on October 19, 1781, at Yorktown, Virgi ...
in 1862. As a captain, Rains had earlier employed explosive booby traps during the Seminole Wars in Florida in 1840. Over the course of the war, mines only caused a few hundred casualties, but they had a large effect on morale and slowed down the advance of Union troops. Many on both sides considered the use of mines barbaric, and in response, generals in the
Union Army During the American Civil War, the Union Army, also known as the Federal Army and the Northern Army, referring to the United States Army, was the land force that fought to preserve the Union (American Civil War), Union of the collective U.S. st ...
forced Confederate prisoners to remove the mines.


High explosives

Starting in the 19th century, more powerful explosives than gunpowder were developed, often for non-military reasons such as blasting train tunnels in the Alps and Rockies. Guncotton, up to four times more powerful than gunpowder, was invented by Christian Schonbein in 1846. It was dangerous to make until Frederick Augustus Abel developed a safe method in 1865. From the 1870s to the First World War, it was the standard explosive used by the British military. In 1847,
Ascanio Sobrero Ascanio Sobrero (12 October 1812 – 26 May 1888) was an Italian chemist, born in Casale Monferrato. He was studying under Théophile-Jules Pelouze at the University of Turin, who had worked with the explosive material guncotton. He studied med ...
invented nitroglycerine to treat angina pectoris and it turned out to be a much more powerful explosive than guncotton. It was very dangerous to use until
Alfred Nobel Alfred Bernhard Nobel ( , ; 21 October 1833 – 10 December 1896) was a Swedish chemist, engineer, inventor, businessman, and philanthropist. He is best known for having bequeathed his fortune to establish the Nobel Prize, though he al ...
found a way to incorporate it in a solid mixture called
dynamite Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay), and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany, and patented in 1867. It rapidl ...
and developed a safe detonator. Even then, dynamite needed to be stored carefully or it could form crystals that detonated easily. Thus, the military still preferred guncotton. In 1863, the German chemical industry developed trinitrotoluene ( TNT). This had the advantage that it was difficult to detonate, so it could withstand the shock of firing by artillery pieces. It was also advantageous for land mines for several reasons: it was not detonated by the shock of shells landing nearby; it was lightweight, unaffected by damp, and stable under a wide range of conditions; it could be melted to fill a container of any shape, and it was cheap to make. Thus, it became the standard explosive in mines after the First World War.


Between the American Civil War and the First World War

The British used mines in the
Siege of Khartoum The Siege of Khartoum (also known as the Battle of Khartoum or Fall of Khartoum) occurred from 13 March 1884 to 26 January 1885. Sudanese Mahdist forces captured the city of Khartoum from its Egyptian garrison, thereby gaining control over th ...
. A Sudanese Mahdist force much larger than British strength was held off for ten months, but the town was ultimately taken and the British massacred. In the
Boer War The Second Boer War ( af, Tweede Vryheidsoorlog, , 11 October 189931 May 1902), also known as the Boer War, the Anglo–Boer War, or the South African War, was a conflict fought between the British Empire and the two Boer Republics (the Sou ...
(1899–1903), they succeeded in holding Mafeking against Boer forces with the help of a mixture of real and fake minefields; and they laid mines alongside railroad tracks to discourage sabotage. In the
Russo-Japanese War The Russo-Japanese War ( ja, 日露戦争, Nichiro sensō, Japanese-Russian War; russian: Ру́сско-япóнская войнá, Rússko-yapónskaya voyná) was fought between the Empire of Japan and the Russian Empire during 1904 and 1 ...
of 1904–1905, both sides used land and sea mines, although the effect on land mainly affected morale. The naval mines were far more effective, destroying several battleships.


First World War

One sign of the increasing power of explosives used in land mines was that, by the First World War, they burst into about 1,000 high-velocity fragments; in the Franco-Prussian War (1870), it had only been 20 to 30 fragments. Nevertheless, antipersonnel mines were not a big factor in the war because machine guns, barbed wire and rapid-fire artillery were far more effective defenses. An exception was in Africa (now
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
and
Namibia Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea ...
) where the warfare was much more mobile. Towards the end of the war, the British started to use tanks to break through trench defenses. The Germans responded with anti-tank guns and mines. Improvised mines gave way to mass-produced mines consisting of wooden boxes filled with guncotton, and minefields were standardized to stop masses of tanks from advancing. Between world wars, the future
Allies An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
did little work on land mines, but the Germans developed a series of anti-tank mines, the ''Tellermines'' (plate mines). They also developed the ''Schrapnell mine'' (also known as the S-mine), the first
bounding mine {{Unreferenced, date=May 2021 A bounding mine is an anti-personnel mine designed to be used in open areas. When it is tripped, a small propelling charge launches the body of the mine 3 to 4 feet (90 to 120 cm) into the air, where the main charge ...
. When triggered, this jumped up to about waist height and exploded, sending thousands of steel balls in all directions. Triggered by pressure, trip wires or electronics, it could harm soldiers within an area of about 2,800 square feet.


Second World War

Tens of millions of mines were laid in the
Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ...
, particularly in the deserts of
North Africa North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in ...
and the steppes of
Eastern Europe Eastern Europe is a subregion of the European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural, and socio-economic connotations. The vast majority of the region is covered by Russia, whi ...
, where the open ground favored tanks. However, the first country to use them was Finland. They were defending against a much larger Soviet force with over 6,000 tanks, twenty times the number the Finns had; but they had terrain that was broken up by lakes and forests, so tank movement was restricted to roads and tracks. Their defensive line, the
Mannerheim Line The Mannerheim Line ( fi, Mannerheim-linja, sv, Mannerheimlinjen) was a defensive fortification line on the Karelian Isthmus built by Finland against the Soviet Union. While this was never an officially designated name, during the Winter War ...
, integrated these natural defenses with mines, including simple fragmentation mines mounted on stakes. While the Germans were advancing rapidly using ''
blitzkrieg Blitzkrieg ( , ; from 'lightning' + 'war') is a word used to describe a surprise attack using a rapid, overwhelming force concentration that may consist of armored and motorized or mechanized infantry formations, together with close air ...
'' tactics, they did not make much use of mines. After 1942, however, they were on the defensive and became the most inventive and systematic users of mines. Their production shot up and they began inventing new types of mines as the Allies found ways to counter the existing ones. To make it more difficult to remove antitank mines, they surrounded them with S-mines and added anti-handling devices that would explode when soldiers tried to lift them. They also took a formal approach to laying mines and they kept detailed records of the locations of mines. In the Second Battle of El Alamein in 1942, the Germans prepared for an Allied attack by laying about half a million mines in two fields running across the entire battlefield and five miles deep. Nicknamed the "
Devil's gardens The Devil's gardens was the name given by Field Marshal () Erwin Rommel, commander of the German during the Second World War, to the defensive entanglements of land mines and barbed wire built to protect Axis defensive positions at El Alamein ...
", they were covered by 88 mm anti-tank guns and small-arms fire. The Allies prevailed, but at the cost of over half their tanks; 20 percent of the losses were caused by mines. The Soviets learned the value of mines from their war with Finland, and when Germany invaded they made heavy use of them, manufacturing over 67 million. At the
Battle of Kursk The Battle of Kursk was a major World War II Eastern Front engagement between the forces of Nazi Germany and the Soviet Union near Kursk in the southwestern USSR during late summer 1943; it ultimately became the largest tank battle in history ...
, which put an end to the German advance, they laid over a million mines in eight belts with an overall depth of 35 kilometres. Mines forced tanks to slow down and wait for soldiers to go ahead and remove the mines. The main method of breaching minefields involved prodding the dirt with a bayonet or stick at an angle of 30 degrees (to avoid putting pressure on the top of the mine and detonating it). Since all mines at the beginning of the war had metal casings, metal detectors could be used to speed up the locating of mines. A Polish officer, Józef Kosacki, developed a portable mine detector known as the
Polish mine detector The Mine detector (Polish) Mark I () was a metal detector for landmines developed during World War II. Initial work on the design had started in Poland but after the invasion of Poland by the Germans in 1939, and then the Fall of France in mid-1 ...
. To counter the detector, Germans developed mines with wooden casings, the
Schu-mine 42 The Schü-mine 42 (''Schützenmine 42'', "rifleman's mine model of 1942"), was a German anti-personnel mine used during the Second World War. It consisted of a simple wooden box with a hinged lid containing a block of cast TNT and a ZZ-42 type det ...
(antipersonnel) and
Holzmine 42 The Holzmine 42 was an anti-tank mine that was developed by Germany and used by the Wehrmacht during World War II. Design The Holzmine 42 was designed to be a low cost, and easy to produce anti-tank mine which could utilize the woodworking ind ...
(anti-tank). Effective, cheap and easy to make, the ''schu'' mine became the most common mine in the war. Mine casings were also made of glass, concrete and clay. The Russians developed a mine with a pressed-cardboard casing, the PMK40, and the Italians made an anti-tank mine out of
bakelite Polyoxybenzylmethylenglycolanhydride, better known as Bakelite ( ), is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. The first plastic made from synthetic components, it was developed ...
. In 1944, the Germans created the
Topfmine The Topfmines were a series of German circular minimum metal anti-tank blast mines that entered service with the German army in 1944, during the Second World War. The mines used a case made of compressed wood-pulp, cardboard and tar along with ...
, an entirely non-metallic mine. They ensured that they could detect their own mines by covering them with radioactive sand; the Allies did not find this out until after the war. Several mechanical methods for clearing mines were tried. Heavy rollers were attached to tanks or cargo trucks, but they did not last long and their weight made the tanks considerably slower. Tanks and bulldozers pushed ploughs that pushed aside any mines to a depth of 30 cm. The Bangalore torpedo, a long thin tube filled with explosives, was invented in 1912 and used to clear barbed wire; larger versions such as the Snake and the Conger were developed for clearing mines, but were not very effective. One of the best options was the flail, which had weights attached by chains to rotating drums. The first version, the Scorpion, was attached to the Matilda tank and used in the Second Battle of El Alamein. The Crab, attached to the Sherman tank, was faster, at 2 kilometers per hour; it was used during D-Day and the aftermath.


Cold War

During the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
, the members of NATO were concerned about massive armored attacks by the Soviet Union. They planned for a minefield stretching across the entire West German border, and developed new types of mine. The British designed an anti-tank mine, the Mark 7, to defeat rollers by detonating the second time it was pressed. It also had a 0.7-second delay so the tank would be directly over the mine. They also developed the first scatterable mine, the No. 7 ("Dingbat"). The Americans used the M6 antitank mine and tripwire-operated bounding antipersonnel mines such as the M2 and
M16 The M16 rifle (officially designated Rifle, Caliber 5.56 mm, M16) is a family of military rifles adapted from the ArmaLite AR-15 rifle for the United States military. The original M16 rifle was a 5.56×45mm automatic rifle with a 20-roun ...
. In the
Korean War {{Infobox military conflict , conflict = Korean War , partof = the Cold War and the Korean conflict , image = Korean War Montage 2.png , image_size = 300px , caption = Clockwise from top:{ ...
, land mine use was dictated by the steep terrain, narrow valleys, forest cover and lack of developed roads. This made tanks less effective and more easily stopped by mines. However, mines laid near roads were often easy to spot. In response to this problem, the US developed the M24, a mine that was placed off to the side of the road. When triggered by a tripwire, it fired a rocket. However, the mine was not available until after the war. The Chinese had a lot of success with massed infantry attacks. The extensive forest cover limited the range of machine guns, but anti-personnel mines were effective. However, mines were poorly recorded and marked, often becoming as much a hazard to allies as enemies. Tripwire-operated mines were not defended by pressure mines; the Chinese were often able to disable them and reuse them against UN forces. Looking for more destructive mines, the Americans developed the Claymore, a directional fragmentation mine that hurls steel balls in a 60-degree arc at a lethal speed of 1,200 metres per second. They also developed a pressure-operated mine, the M14 ("toe-popper"). These, too, were ready too late for the Korean war. In 1948, the British developed the No. 6 antipersonnel mine, a minimum-metal mine with a narrow diameter, making it difficult to detect with metal detectors or prodding. Its three-pronged pressure piece inspired the nickname "carrot mine". However, it was unreliable in wet conditions. In the 1960s the Canadians developed a similar, but more reliable mine, the C3A1 ("Elsie") and the British army adopted it. The British also developed the L9 bar mine, a wide anti-tank mine with a rectangular shape, which covered more area, allowing a minefield to be laid four times as fast as previous mines. They also upgraded the Dingbat to the Ranger, a plastic mine that was fired from a truck-mounted discharger that could fire 72 mines at a time. In the 1950s, the US Operation Doan Brook studied the feasibility of delivering mines by air. This led to three types of air-delivered mine. ''Wide area anti-personnel mines'' (''WAAPMs'') were small steel spheres that discharged tripwires when they hit the ground; each dispenser held 540 mines. The BLU-43 Dragontooth was small and had a flattened ''W'' shape to slow its descent, while the
gravel mine Gravel mines, also called Button mines, were small United States made air-dropped anti-personnel mines. They were used extensively during the Vietnam War as part of the McNamara Line. They were also used as a rapid-deployment area denial expedie ...
was larger. Both were packed by the thousand into bombs. All three were designed to inactivate after a period of time, but any that failed to activate presented a safety challenge. Over 37 million Gravel mines were produced between 1967 and 1968, and when they were dropped in places like Vietnam their locations were unmarked and unrecorded. A similar problem was presented by unexploded cluster munitions. The next generation of scatterable mines arose in response to the increasing mobility of war. The Germans developed the Skorpion system, which scattered AT2 mines from a tracked vehicle. The Italians developed a helicopter delivery system that could rapidly switch between SB-33 anti-personnel mines and SB-81 anti-tank mines. The US developed a range of systems called the Family of Scatterable Mines (FASCAM) that could deliver mines by fast jet, artillery, helicopter and ground launcher.


Middle eastern conflicts

The Iraq-Iran War, the
Gulf War The Gulf War was a 1990–1991 armed campaign waged by a 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Iraq were carried out in two key phases: ...
, and the
Islamic State An Islamic state is a state that has a form of government based on Islamic law (sharia). As a term, it has been used to describe various historical polities and theories of governance in the Islamic world. As a translation of the Arabic ter ...
have all contributed to land mine saturation in Iraq from the 1980s through 2020. Iraq is now the most saturated country in the world with landmines. Countries that provided land mines during the Iran-Iraq War included Belgium, Canada, Chile, China, Egypt, France, Italy, Romania, Singapore, the former Soviet Union and the U.S., and were concentrated in the Kurdish areas in the northern area of Iraq. During the Gulf War, the U.S. deployed 117,634 mines, with 27,967 being anti-personnel mines and 89,667 being anti-vehicle mines. The U.S. did not use land mines during the
Iraq War {{Infobox military conflict , conflict = Iraq War {{Nobold, {{lang, ar, حرب العراق (Arabic) {{Nobold, {{lang, ku, شەڕی عێراق (Kurdish languages, Kurdish) , partof = the Iraq conflict (2003–present), I ...
.


Invasion of Ukraine

During the
2022 Russian Invasion of Ukraine On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's largest refugee crisis since World War II. A ...
, both Russian and Ukrainian forces have used land mines. Ukrainian officials claim Russian forces planted thousands of land mines or other explosive devices during their withdrawal from Ukrainian cities, including in civilian areas. Russian forces have also utilized remotely delivered anti-personnel mines such as the
POM-3 The POM-3 "Medallion" (''ПOM-3, )'' is a Russian bounding anti-personnel mine. Design The POM-3 is a scatterable mine of roughly cylindrical shape, able to be deployed from the air or by ground forces. The Russian ISDM Zemledelie mine-laying ...


Chemical and nuclear

In the First World War, the Germans developed a device, nicknamed the "Yperite Mine" by the British, that they left behind in abandoned trenches and bunkers. It was detonated by a delayed charge, spreading
mustard gas Mustard gas or sulfur mustard is a chemical compound belonging to a family of cytotoxic and blister agents known as mustard agents. The name ''mustard gas'' is technically incorrect: the substance, when dispersed, is often not actually a gas, ...
("Yperite"). In the Second World War they developed a modern chemical mine, the Sprüh-Büchse 37 (Bounding Gas Mine 37), but never used it. The United States developed the
M1 chemical mine The M1 was a United States chemical landmine. It developed in 1939, and consisted of a one gallon (4.5 liter) gasoline can filled with 9.9 lbs (4.5 kg) of mustard gas agent. As issued, it had no bursting charge or fuze, but required a burs ...
, which used mustard gas, in 1939; and the
M23 chemical mine The M23 is a United States steel cased chemical landmine. The mine was developed in the late 1950s and early 1960s, and approximately 100,000 units were produced. The U.S. completed its destruction of its stock at the Umatilla Chemical Depot in 2 ...
, which used the VX nerve agent, in 1960. The Soviets developed the KhF, a "bounding chemical mine". The French had chemical mines and the Iraqis were believed to have them before the invasion of Kuwait. In 1997, the
Chemical Weapons Convention The Chemical Weapons Convention (CWC), officially the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction, is an arms control treaty administered by the Organisation for ...
came into force, prohibiting the use of chemical weapons and mandating their destruction. As of April 30, 2019, 97% of the declared stockpiles of chemical weapons were destroyed. For a few decades during the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
, the U.S. developed atomic demolition munitions, often referred to as nuclear land mines. These were portable nuclear bombs that could be placed by hand, and could be detonated remotely or with a timer. Some of these were deployed in Europe. Governments in
West Germany West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...
,
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...
and
Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
wanted to have nuclear minefields as a defense against attack from the
Warsaw Pact The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
. However, such weapons were politically and tactically infeasible, and by 1989 the last of these munitions was retired. The British also had a project, codenamed
Blue Peacock Blue Peacock, renamed from Blue Bunny and originally Brown Bunny, was a British tactical nuclear weapon project in the 1950s. The project's goal was to store a number of ten-kiloton nuclear land mines in Germany. These mines which were intende ...
, to develop nuclear mines to be buried in Germany; the project was cancelled in 1958.


Characteristics and function

A conventional land mine consists of a casing that is mostly filled with the main charge. It has a firing mechanism such as a pressure plate; this triggers a detonator or igniter, which in turn sets off a booster charge. There may be additional firing mechanisms in anti-handling devices.


Firing mechanisms and initiating actions

A land mine can be triggered by a number of things including
pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country a ...
, movement, sound,
magnet A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nicke ...
ism and
vibration Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. The word comes from Latin ''vibrationem'' ("shaking, brandishing"). The oscillations may be periodic, such as the motion of a pendulum—or random, su ...
. Anti-personnel mines commonly use the pressure of a person's foot as a trigger, but
tripwire A tripwire is a passive triggering mechanism. Typically, a wire or cord is attached to a device for detecting or reacting to physical movement. Military applications Such tripwires may be attached to one or more mines – especially fragme ...
s are also frequently employed. Most modern anti-vehicle mines use a magnetic trigger to enable it to detonate even if the tires or tracks did not touch it. Advanced mines are able to sense the difference between friendly and enemy types of vehicles by way of a built-in signature catalog. This will theoretically enable friendly forces to use the mined area while denying the enemy access. Many mines combine the main trigger with a touch or tilt trigger to prevent enemy engineers from defusing it. Land mine designs tend to use as little metal as possible to make searching with a metal detector more difficult; land mines made mostly of plastic have the added advantage of being very inexpensive. Some types of modern mines are designed to
self-destruct A self-destruct is a mechanism that can cause an object to destroy itself or render itself inoperable after a predefined set of circumstances has occurred. Self-destruct mechanisms are typically found on devices and systems where malfunction could ...
, or chemically render themselves inert after a period of weeks or months to reduce the likelihood of civilian casualties at the conflict's end. These self-destruct mechanisms are not absolutely reliable, and most land mines laid historically are not equipped in this manner. There is a common misperception that a landmine is armed by stepping on it and only triggered by stepping off, providing tension in movies. In fact the initial pressure trigger will detonate the mine, as they are designed to kill or maim, not to make someone stand very still until it can be disarmed.


Anti-handling devices

Anti-handling devices detonate the mine if someone attempts to lift, shift or disarm it. The intention is to hinder deminers by discouraging any attempts to clear minefields. There is a degree of overlap between the function of a
boobytrap A booby trap is a device or setup that is intended to kill, harm or surprise a human or another animal. It is triggered by the presence or actions of the victim and sometimes has some form of bait designed to lure the victim towards it. The trap m ...
and an anti-handling device insofar as some mines have optional
fuze In military munitions, a fuze (sometimes fuse) is the part of the device that initiates function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complexity of even the earliest fuze ...
pockets into which standard pull or pressure-release boobytrap firing devices can be screwed. Alternatively, some mines may mimic a standard design, but actually be specifically intended to kill deminers, such as the MC-3 and PMN-3 variants of the
PMN mine The PMN () series of blast anti-personnel mines were designed and manufactured in the Soviet Union. They are one of the most widely used and commonly found devices during demining operations. They are sometimes nicknamed "black widow" because of ...
. Anti-handling devices can be found on both anti-personnel mines and anti-tank mines, either as an integral part of their design or as improvised add-ons. For this reason, the standard render safe procedure for mines is often to destroy them on site without attempting to lift them.


Smart mines

"Smart mines" utilize a number of advanced technologies developed in the late 20th and early 21st century. Most commonly, this includes mechanisms to deactivate or self-destruct the mine after a preset period of time. This is intended to reduce civilian casualties and simplify demining. Other innovations include "self-healing" minefields, which detect gaps in the field and can direct the mines to rearrange their positions and eliminate it.


Anti-tank mines

Anti-tank mine An anti-tank mine (abbreviated to "AT mine") is a type of land mine designed to damage or destroy vehicles including tanks and armored fighting vehicles. Compared to anti-personnel mines, anti-tank mines typically have a much larger explosive c ...
s were created not long after the invention of the
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful ...
in the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
. At first improvised, purpose-built designs were developed. Set off when a tank passes, they attack the tank at one of its weaker areas – the tracks. They are designed to immobilize or destroy vehicles and their occupants. In U.S. military terminology destroying the vehicles is referred to as a catastrophic kill while only disabling its movement is referred to as a
mobility kill A mobility kill (or M-kill) in armoured warfare is a weapon or vehicle that is immobilized, or the act of immobilizing such a target. This is often caused by the vehicle triggering an anti-tank mine by driving over it, though it may also resul ...
. Anti-tank mines are typically larger than anti-personnel mines and require more
pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country a ...
to detonate. The high trigger pressure, normally requiring prevents them from being set off by
infantry Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and mar ...
or smaller vehicles of lesser importance. More modern anti-tank mines use
shaped charge A shaped charge is an explosive charge shaped to form an explosively formed penetrator (EFP) to focus the effect of the explosive's energy. Different types of shaped charges are used for various purposes such as cutting and forming metal, ini ...
s to focus and increase the armor penetration of the explosives.


Anti-personnel mines

Anti-personnel mines are designed primarily to kill or injure people, as opposed to vehicles. They are often designed to injure rather than kill to increase the logistical support (evacuation, medical) burden on the opposing force. Some types of anti-personnel mines can also damage the tracks or wheels of armored vehicles. In the
asymmetric warfare Asymmetric warfare (or asymmetric engagement) is the term given to describe a type of war between belligerents whose relative military power, strategy or tactics differ significantly. This is typically a war between a standing, professional ar ...
conflicts and civil wars of the 21st century, improvised explosives, known as IEDs, have partially supplanted conventional landmines as the source of injury to dismounted (pedestrian) soldiers and civilians. IEDs are used mainly by insurgents and terrorists against regular armed forces and civilians. The injuries from the anti-personnel IED were recently reported in
BMJ Open ''BMJ Open'' is a peer-reviewed open access medical journal that is dedicated to publishing medical research from all disciplines and therapeutic areas. It is published by BMJ and considers all research study types, from protocols through phase ...
to be far worse than with landmines resulting in multiple limb
amputation Amputation is the removal of a limb by trauma, medical illness, or surgery. As a surgical measure, it is used to control pain or a disease process in the affected limb, such as malignancy or gangrene. In some cases, it is carried out on indi ...
s and lower body mutilation.


Warfare

Land mines were designed for two main uses: * To create defensive tactical barriers, channelling attacking forces into predetermined fire zones or slowing an invading force's progress to allow reinforcements to arrive. * To act as passive
area-denial An area denial weapon is a defensive device used to prevent an adversary from occupying or traversing an area of land, sea or air. The specific method used does not have to be totally effective in preventing passage (and sometimes is not) as lon ...
weapons (to deny the enemy use of valuable terrain, resources or facilities when active defense of the area is not desirable or possible). Land mines are currently used in large quantities mostly for this first purpose, thus their widespread use in the demilitarized zones (DMZs) of likely flashpoints such as
Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is ...
,
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is borde ...
and Korea. As of 2013, the only governments that still laid land mines were
Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...
in its internal conflict, and Syria in its civil war. In
military science Military science is the study of military processes, institutions, and behavior, along with the study of warfare, and the theory and application of organized coercive force. It is mainly focused on theory, method, and practice of producing mi ...
, minefields are considered a defensive or harassing weapon, used to slow the enemy down, to help deny certain terrain to the enemy, to focus enemy movement into kill zones, or to reduce morale by randomly attacking material and personnel. In some engagements during World War II, anti-tank mines accounted for half of all vehicles disabled. Since combat engineers with mine-clearing equipment can clear a path through a minefield relatively quickly, mines are usually considered effective only if covered by fire. The extents of minefields are often marked with warning signs and cloth tape, to prevent friendly troops and non-combatants from entering them. Of course, sometimes terrain can be denied using dummy minefields. Most forces carefully record the location and disposition of their own minefields, because warning signs can be destroyed or removed, and minefields should eventually be cleared. Minefields may also have marked or unmarked safe routes to allow friendly movement through them. Placing minefields without marking and recording them for later removal is considered a war crime under Protocol II of the
Convention on Certain Conventional Weapons The United Nations Convention on Certain Conventional Weapons (CCW or CCWC), concluded at Geneva on October 10, 1980, and entered into force in December 1983, seeks to prohibit or restrict the use of certain conventional weapons which are cons ...
, which is itself an annex to the
Geneva Conventions upright=1.15, Original document in single pages, 1864 The Geneva Conventions are four treaties, and three additional protocols, that establish international legal standards for humanitarian treatment in war. The singular term ''Geneva Conv ...
. Artillery and aircraft scatterable mines allow minefields to be placed in front of moving formations of enemy units, including the reinforcement of minefields or other obstacles that have been breached by enemy engineers. They can also be used to cover the retreat of forces disengaging from the enemy, or for interdiction of supporting units to isolate front line units from resupply. In most cases these minefields consist of a combination of anti-tank and anti-personnel mines, with the anti-personnel mines making removal of the anti-tank mines more difficult. Mines of this type used by the United States are designed to self-destruct after a preset period of time, reducing the requirement for mine clearing to only those mines whose self-destruct system did not function. Some designs of these scatterable mines require an electrical charge (capacitor or battery) to detonate. After a certain period of time, either the charge dissipates, leaving them effectively inert or the circuitry is designed such that upon reaching a low level, the device is triggered, thus destroying the mine.


Guerrilla warfare

None of the conventional tactics and norms of mine warfare applies when they are employed in a guerrilla role: * The mines are not used in defensive roles (for specific position or area). * Mined areas are not marked. * Mines are usually placed singly and not in groups covering an area. * Mines are often left unattended (not covered by fire). Land mines were commonly deployed by insurgents during the South African Border War, leading directly to the development of the first dedicated mine-protected armoured vehicles in South Africa. Namibian insurgents used anti-tank mines to throw South African military convoys into disarray before attacking them. To discourage detection and removal efforts, they also laid anti-personnel mines directly parallel to the anti-tank mines. This initially resulted in heavy South African military and police casualties, as the vast distances of road network vulnerable to insurgent
sapper A sapper, also called a pioneer or combat engineer, is a combatant or soldier who performs a variety of military engineering duties, such as breaching fortifications, demolitions, bridge-building, laying or clearing minefields, preparin ...
s every day made comprehensive detection and clearance efforts impractical. The only other viable option was the adoption of mine-protected vehicles which could remain mobile on the roads with little risk to their passengers even if a mine was detonated. South Africa is widely credited with inventing the
v-hull The V-hull is a type of vehicle armor design used on wheeled armored personnel carriers (APCs), infantry mobility vehicles, infantry fighting vehicles (IFVs) and MRAPs. The design originated in the 1970s with vehicles such as the iconic Cassp ...
, a vee-shaped hull for armoured vehicles which deflects mine blasts away from the passenger compartment. During the ongoing Syrian Civil War, Iraqi Civil War (2014–2017) and
Yemeni Civil War (2015–present) Yemeni Civil War may refer to several historical events which have taken place in Yemen: * Alwaziri coup, February – March 1948 * Yemeni–Adenese clan violence, 1956–60 * North Yemen Civil War, 1962–70 * Aden Emergency, 1963–67 * North Yem ...
landmines have been used for both defensive and guerrilla purposes.


Laying mines

Minefields may be laid by several means. The preferred, but most labour-intensive, way is to have engineers bury the mines, since this will make the mines practically invisible and reduce the number of mines needed to deny the enemy an area. Mines can be laid by specialized mine-laying vehicles. Mine-scattering shells may be fired by
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during si ...
from a distance of several tens of kilometers. Mines may be dropped from
helicopter A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attribu ...
s or airplanes, or ejected from
cluster bomb A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicl ...
s or
cruise missile A cruise missile is a guided missile used against terrestrial or naval targets that remains in the atmosphere and flies the major portion of its flight path at approximately constant speed. Cruise missiles are designed to deliver a large warh ...
s. Anti-tank minefields can be scattered with anti-personnel mines to make clearing them manually more time-consuming; and anti-personnel minefields are scattered with anti-tank mines to prevent the use of armored vehicles to clear them quickly. Some anti-tank mine types are also able to be triggered by infantry, giving them a dual purpose even though their main and official intention is to work as anti-tank weapons. Some minefields are specifically booby-trapped to make clearing them more dangerous. Mixed anti-personnel and anti-tank minefields, anti-personnel mines ''under'' anti-tank mines, and fuses separated from mines have all been used for this purpose. Often, single mines are backed by a secondary device, designed to kill or maim personnel tasked with clearing the mine. Multiple anti-tank mines have been buried in stacks of two or three with the bottom mine fuzed, to multiply the penetrating power. Since the mines are buried, the ground directs the energy of the blast in a single direction—through the bottom of the target vehicle or on the track. Another specific use is to mine an aircraft runway immediately after it has been bombed to delay or discourage repair. Some cluster bombs combine these functions. One example was the British JP233 cluster bomb which includes munitions to damage (crater) the runway as well as anti-personnel mines in the same cluster bomb. As a result of the anti-personnel mine ban it was withdrawn from British Royal Air Force service, and the last stockpiles of the mine were destroyed on October 19, 1999.


Demining

Metal detectors were first used for demining, after their invention by the Polish officer Józef Kosacki. His invention, known as the
Polish mine detector The Mine detector (Polish) Mark I () was a metal detector for landmines developed during World War II. Initial work on the design had started in Poland but after the invasion of Poland by the Germans in 1939, and then the Fall of France in mid-1 ...
, was used by the Allies alongside mechanical methods, to clear the German mine fields during the Second Battle of El Alamein when 500 units were shipped to
Field Marshal Montgomery Field Marshal Bernard Law Montgomery, 1st Viscount Montgomery of Alamein, (; 17 November 1887 – 24 March 1976), nicknamed "Monty", was a senior British Army officer who served in the First World War, the Irish War of Independence and th ...
's Eighth Army. The Nazis used captured civilians who were chased across minefields to detonate the explosives. According to Laurence Rees "
Curt von Gottberg Curt Gustav Friedrich Walther von Gottberg (11 February 1896 – 31 May 1945) was a high-ranking SS ''Obergruppenführer'' who served as Higher SS and Police Leader for central Russia and, from September 1943, as the ''Generalkommissar'' (Comm ...
, the SS-Obergruppenführer who, during 1943, conducted another huge anti-partisan action called Operation Kottbus on the eastern border of
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
, reported that 'approximately two to three thousand local people were blown up in the clearing of the minefields'." Whereas the placing and arming of mines is relatively inexpensive and simple, the process of detecting and removing them is typically expensive, slow, and dangerous. This is especially true of irregular warfare where mines were used on an ad hoc basis in unmarked and undocumented areas. Anti-personnel mines are most difficult to find, due to their small size and many being made almost entirely of non-metallic materials specifically to evade metal detectors. Manual clearing remains the most effective technique for clearing mine fields, although hybrid techniques involving the use of animals and robots are being developed. Many animals are desirable due to having a strong sense of smell capable of detecting a land mine. Animals such as rats and dogs can be trained to detect the explosive agent. Other techniques involve the use of geolocation technologies. a joint team of researchers at the University of New South Wales and Ohio State University was working to develop a system based on multi-sensor integration. The laying of land mines has inadvertently led to a positive development in the
Falkland Islands The Falkland Islands (; es, Islas Malvinas, link=no ) is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and about from Cape Dubouze ...
. Minefields laid near the sea during the
Falklands War The Falklands War ( es, link=no, Guerra de las Malvinas) was a ten-week undeclared war between Argentina and the United Kingdom in 1982 over two British dependent territories in the South Atlantic: the Falkland Islands and its territorial ...
have become favorite places for penguins, which do not weigh enough to detonate the mines. Therefore, they can breed safely, free of human intrusion. These odd sanctuaries have proven so popular and lucrative for
ecotourism Ecotourism is a form of tourism involving responsible travel (using sustainable transport) to natural areas, conserving the environment, and improving the well-being of the local people. Its purpose may be to educate the traveler, to provide fund ...
that efforts existed to prevent removal of the mines, but the area has since been demined.


International treaties

The use of land mines is controversial because they are indiscriminate weapons, harming soldier and civilian alike. They remain dangerous after the conflict in which they were deployed has ended, killing and injuring civilians and rendering land impassable and unusable for decades. To make matters worse, many factions have not kept accurate records (or any at all) of the exact locations of their minefields, making removal efforts painstakingly slow. These facts pose serious difficulties in many developing nations where the presence of mines hampers resettlement, agriculture, and tourism. The International Campaign to Ban Landmines campaigned successfully to prohibit their use, culminating in the 1997 Convention on the Prohibition of the Use, Stockpiling, Production and Transfer of Anti-Personnel Mines and on their Destruction, known informally as the Ottawa Treaty. The Treaty came into force on March 1, 1999. The treaty was the result of the leadership of the Governments of Canada,
Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of ...
, South Africa and
Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...
working with the '' International Campaign to Ban Landmines'', launched in 1992. The campaign and its leader, Jody Williams, won the
Nobel Peace Prize The Nobel Peace Prize is one of the five Nobel Prizes established by the will of Swedish industrialist, inventor and armaments (military weapons and equipment) manufacturer Alfred Nobel, along with the prizes in Chemistry, Physics, Physiolo ...
in 1997 for its efforts. The treaty does not include
anti-tank mine An anti-tank mine (abbreviated to "AT mine") is a type of land mine designed to damage or destroy vehicles including tanks and armored fighting vehicles. Compared to anti-personnel mines, anti-tank mines typically have a much larger explosive c ...
s,
cluster bomb A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicl ...
s or claymore-type mines operated in command mode and focuses specifically on anti-personnel mines, because these pose the greatest long term (post-conflict) risk to humans and animals since they are typically designed to be triggered by any movement or pressure of only a few kilograms, whereas anti-tank mines require much more weight (or a combination of factors that would exclude humans). Existing stocks must be destroyed within four years of signing the treaty. Signatories of the Ottawa Treaty agree that they will not use, produce, stockpile or trade in anti-personnel land mines. In 1997, there were 122 signatories; as of early 2016, 162 countries have joined the Treaty. Thirty-six countries, including the People's Republic of China, the Russian Federation and the United States, which together may hold tens of millions of stockpiled antipersonnel mines, are not party to the Convention. Another 34 have yet to sign on. The United States did not sign because the treaty lacks an exception for the Korean Demilitarized Zone. There is a clause in the treaty, Article 3, which permits countries to retain land mines for use in training or development of countermeasures. Sixty-four countries have taken this option. As an alternative to an outright ban, 10 countries follow regulations that are contained in a 1996 amendment of Protocol II of the
Convention on Conventional Weapons The United Nations Convention on Certain Conventional Weapons (CCW or CCWC), concluded at Geneva on October 10, 1980, and entered into force in December 1983, seeks to prohibit or restrict the use of certain conventional weapons which are consid ...
(CCW). The countries are China,
Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
, India, Israel,
Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to A ...
,
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
,
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
and the United States.
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
, which had adhered to this regulation, announced in 2016 that it would join the Ottawa Treaty. Submunitions and Unexploded ordnance from
cluster munitions A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehic ...
can also function as landmines, in that they continue to kill and maim indiscriminately long after conflicts have ended. The
Convention on Cluster Munitions The Convention on Cluster Munitions (CCM) is an international treaty that prohibits all use, transfer, production, and stockpiling of cluster bombs, a type of explosive weapon which scatters submunitions ("bomblets") over an area. Additionally, ...
(CCM) is an international treaty that prohibits the use, distribution, or manufacture of cluster munitions. The CCM entered into force in 2010, and has been ratified by over 100 countries.


Manufacturers

Before the Ottawa Treaty was adopted, the Arms Project of
Human Rights Watch Human Rights Watch (HRW) is an international non-governmental organization, headquartered in New York City, that conducts research and advocacy on human rights. The group pressures governments, policy makers, companies, and individual human ...
identified "almost 100 companies and government agencies in 48 countries" that had manufactured "more than 340 types of antipersonnel landmines in recent decades." Five to ten million mines were produced per year with a value of $50 to $200 million. The largest producers were probably China, Italy and the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
. The companies involved included giants such as
Daimler-Benz The Mercedes-Benz Group AG (previously named Daimler-Benz, DaimlerChrysler and Daimler) is a German multinational automotive corporation headquartered in Stuttgart, Baden-Württemberg, Germany. It is one of the world's leading car manufactu ...
, the
Fiat Group Stellantis Italy, formerly known as Fiat Group Automobiles S.p.A. from 2007 to 2014 and FCA Italy S.p.A. from 2014 to 2021, is the Italian subsidiary of the multinational automaker Stellantis, dedicated to the production and selling of passenge ...
, the Daewoo Group, RCA and
General Electric General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable ene ...
. As of 2017, the ''Landmine & Cluster Munition Monitor'' identified four countries that were "likely to be actively producing" land mines: India,
Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...
,
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
and
South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
. Another seven states reserved the right to make them but were probably not doing so: China,
Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribb ...
,
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
,
North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and shares borders with China and Russia to the north, at the Yalu (Amnok) and T ...
, Russia, Singapore, and
Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making ...
.


Impacts

Throughout the world there are millions of hectares that are contaminated with land mines.


Casualties

From 1999 to 2017, the ''Landmine Monitor'' has recorded over 120,000 casualties from mines, IEDs and explosive remnants of war; it estimates that another 1,000 per year go unrecorded. The estimate for all time is over half a million. In 2017, at least 2,793 were killed and 4,431 injured. 87% of the casualties were civilians and 47% were children (less than 18 years old). The largest numbers of casualties were in Afghanistan (2,300), Syria (1,906), and Ukraine (429).


Environmental

Natural disasters can have a significant impact on efforts to demine areas of land. For example, the floods that occurred in Mozambique in 1999 and 2000 may have displaced hundreds of thousands of land mines left from the war. Uncertainty about their locations delayed recovery efforts.


Land degradation

From a study by
Asmeret Asefaw Berhe Asmeret Asefaw Berhe is a soil biogeochemist and political ecologist who is the current Director of the Office of Science at the US Department of Energy. She was previously the Professor of Soil Biogeochemistry and the Ted and Jan Falasco Chair ...
, land degradation caused by land mines "can be classified into five groups: access denial, loss of biodiversity, micro-relief disruption, chemical composition, and loss of productivity". The effects of an explosion depend on: "(i) the objectives and methodological approaches of the investigation; (ii) concentration of mines in a unit area; (iii) chemical composition and toxicity of the mines; (iv) previous uses of the land and (v) alternatives that are available for the affected populations."


Access denial

The most prominent ecological issue associated with landmines (or fear of them) is denial of access to vital resources (where "access" refers to the ability to use resources, in contrast to "property", the right to use them). The presence and fear of presence of even a single landmine can discourage access for agriculture, water supplies and possibly conservation measures. Reconstruction and development of important structures such as schools and hospitals are likely to be delayed, and populations may shift to urban areas, increasing overcrowding and the risk of spreading diseases. Access denial can have positive effects on the environment. When a mined area becomes a "no-man's land", plants and vegetation have a chance to grow and recover. For example, formerly arable lands in Nicaragua returned to forests and remained undisturbed after the establishment of landmines. Similarly, the penguins of the Falkland Islands have benefited because they are not heavy enough to trigger the mines present. However, these benefits can only last as long as animals, tree limbs, etc. do not detonate the mines. In addition, long idle periods could "potentially end up creating or exacerbating loss of productivity", particularly within land of low quality.


Loss of biodiversity

Landmines can threaten
biodiversity Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic ('' genetic variability''), species ('' species diversity''), and ecosystem ('' ecosystem diversity'') ...
by wiping out vegetation and wildlife during explosions or demining. This extra burden can push threatened and endangered species to extinction. They have also been used by poachers to target endangered species. Displace people refugees hunt animals for food and destroy habitat by making shelters. Shrapnel, or abrasions of bark or roots caused by detonated mines, can cause the slow death of trees and provide entry sites for wood-rotting fungi. When landmines make land unavailable for farming, residents resort to the forests to meet all of their survival needs. This exploitation furthers the loss of biodiversity.


Chemical contamination

Near mines that have exploded or decayed, soils tend to be contaminated, particularly with heavy metals. Products produced from the explosives, both organic and inorganic substances, are most likely to be "long lasting, water-soluble and toxic even in small amounts". They can be implemented either "directly or indirectly into soil, water bodies, microorganisms and plants with drinking water, food products or during respiration". Toxic compounds can also find their way into bodies of water and accumulate in land animals, fish and plants. They can act "as a nerve poison to hamper growth", with deadly effect.


See also

*
Countermine System The Countermine System (CMS), also known as Venom Darts, Venom Penetrators and GBU-61, is an anti-land-mine system consisting of chemical or explosive projectiles released from modified GPS-guided bombs. The darts are used to detonate or deactivate ...
*
Demolition belt In military terminology, a demolition belt is a selected land area sown with explosive charges, mines, and other available obstacles to deny use of the land to enemy operations, and as a protection to friendly troops. There are two types of demol ...
* Mine Protected Vehicle * Unexploded ordnance (UXO) *
Improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mecha ...
*
Convention on Cluster Munitions The Convention on Cluster Munitions (CCM) is an international treaty that prohibits all use, transfer, production, and stockpiling of cluster bombs, a type of explosive weapon which scatters submunitions ("bomblets") over an area. Additionally, ...
* TM 31-210 Improvised Munitions Handbook ;Mines * Anti-personnel mine *
ARGES mine ARGES is an anti-tank off-route mine, developed by an international consortium to meet the needs of the British, French and German armed forces. The system consists of a rocket and launch tube, a tripod and a sensor package. The sensor package h ...
*
Blast resistant mine A Blast resistant mine is a landmine (intended for anti-tank or anti-personnel purposes) with a fuze which is designed to be insensitive to the shock wave from a nearby explosion. This feature makes it difficult or impossible to clear such mines ...
*
Intelligent Munitions System The XM1100 Scorpion, formerly known as the Intelligent Munitions System, was an anti-vehicle, smart ground munition developed by Textron Defense Systems as a safer alternative to traditional landmines. The Scorpion was originally a component of the ...
*
List of land mines This is a list of commonly used land mines. Mines by type Anti-personnel mines Fragmentation and stake mines Shaped charge mines * C3A1 mine * C3A2 mine Directional mines Blast mines Bounding mines Flame mines * Abwehr ...
*
LPZ mine The L.P.Z. mine or Leichte Panzermine (Light tank-mine) was a circular, metal-cased German anti-tank mine produced during the Second World War. The mine was accepted into service in 1941, and were intended for use by Paratroops. Production of the ...
* Minimum metal mine * PFM-1 * Smart mine *
Wooden box mine The PMD-6, PMD-7 and PMD-57 series mines are Soviet Union blast-type anti-personnel mines that consist of a wooden box with a hinged lid with a slot cut into it. The slot presses down against a retaining pin, which holds back the striker. When suff ...
*
Bulgarian anti-helicopter mines The 4AHM-100, AHM-200, AHM-200-1, AHM-200-2, PMN-150, and PMN-250 are Bulgarian directional fragmentation mines that can be used with proximity fuzes to function as anti-helicopter mines. Description The systems were developed by the Bulgarian Ins ...
;Places *
Land mines in Central America Land mines in Central America are a by-product of the Cold War-era conflicts of the 1980s. Contrary to the requirements of generally accepted international law, the minefields of Central America were usually unmarked and unrecorded on maps. Once p ...
*
Land mines in Cambodia Cambodia is a country located in Southeast Asia that has a major problem with landmines, especially in rural areas. This is the legacy of three decades of war which has taken a severe toll on the Cambodians; it has some 40,000 amputees, which is ...
*
Landmines in Israel Landmines in Israel have been a problem since the 1950s and 1960s. Campaigns to clear the landmines, led by a coalition of civil-society organizations, mine-affected communities and land mine survivors, operated from 2009 to 2011, until the Kness ...
*
Land mines in North Africa This article discusses the problem represented by land mines in North Africa, the consequent suffering of its peoples, and how the countries in the region deal with this problem. History On 10 June 1940, during World War II, Italy declared war on ...
* Uzbek-Tajikistan border minefields ;Organisations * Mines Advisory Group (MAG) * Mine clearance agencies


Notes


References

* * * * * * *


External links


ICBL: International Campaign to Ban Landmines

Landmines and international humanitarian law
ICRC
Detector Spots Buried Mines
1943, Popular Science article on the "Polish" mine detector.
"How Axis Land Mines Work", April 1944
detailed article on types of land mines
E-Mine
Electronic Mine Information Network by United Nations Mine Action Services
Detecting Land Mines: New Technology
by Paul Grad. Published b
''Asian Surveying and Mapping''
* Ken Rutherford
"Landmines: A Survivor’s Tale"
Journal of Mine Action {{DEFAULTSORT:Land Mine Chinese inventions Explosive weapons