Page "Land mine" Paragraph 33

A land mine can be triggered by a number of things including pressure, movement, sound, magnetism and vibration.

Anti-personnel mines commonly use the pressure of a person's foot as a trigger, but tripwires 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.