Mine (land warfare)

Template:TOC-right In land warfare, a mine is an explosive device placed on ground or attacked to an object in which the user wants to establish a barrier, and which will explode due to some physical effect by a passing person or vehicle. In other words, mines are rarely used in an actual battle, but emplaced to attack at some future time.

As opposed to naval mines, the effect of land mines can be improvised in the field. Improvised explosive devices (IED), also called boobytraps, are similar to a land mine in that they usually lie in passive wait for a target. It is possible to build simple mines out of commercial and random military components and available explosives. warfare, naval mines are sufficiently large and complex that they are designed by engineers and produced in factories. Improvised explosive devices (IED) are quite common in land warfare, along with land mines that are produced by industry.

One of the attractions of mines is that, in many applications, do not need labor or maintenance once emplaced. In tactical use by conventional armies, however, it is generally assumed that minefields will be covered by manned weapons, or possibly with instruments that summon combat aircraft. In unconventional warfare, however, mines may be left unattended and used for area denial or the psychological infliction of terror of the unexpected.

Some mines, often using explosively formed projectiles, may be kept under observation and only triggered by an act of an operator. These are called command-detonated mines and are generally exempt from legal restrictions on land mines.

Mines were originally emplaced by hand. Today, they may be delivered by aircraft, guided missile, or artillery. Mines fired into an area usually have features to disarm themselves after a period of time, to be detonated only by contact with a large and heavy objects such as a tank or both. Much of the humanitarian concern with land mines regards simple antipersonnel mines that remain hazardous for long periods, and, after war's end, make an area unusable for civilian farming, transportation, and other mundane pursuits.

Mine sensing and detonation technology=

The first mines were triggered by direct contact with the target. The mine fuze could be:

• Activated by pressure, as by a person stepping on it or a vehicle driving over it
• Pressure release, as when an object on top of the mine is listed. This usage, even with manufactured mine, blurs into the category of "boobytrap"
• Tension release, as when a taut wire is pulled or broken
• Intelligent sensing of characteristic sound profiles, magnetic effects of a large mass of metal, etc.
• Command detonated by an operator

Again blurring into boobytraps or specialized demolitions, the fuze could be intelligent. For example, when sabotaging a railroad, the enemy may learn to send heavy but essentially worthless, possibly unmanned, self-propelled cars ahead of a real train, in the hope of predetonating anti-railway mines. More intelligent mines, however, could be programmed so that they would allow the first few trains or cars to pass, and detonate only under valuable targets.