A landmine is an explosive device designed to be placed on or just below the ground. It is triggered by pressure or a tripwire, detonating when someone steps on it or moves nearby. Landmines are often used in military conflicts to control areas and deter enemy movement. They can remain dangerous long after a conflict has ended, posing risks to civilians. There are two main types of landmines: anti-personnel mines, which target individuals, and anti-tank mines, designed to destroy vehicles. The use of landmines has raised significant humanitarian concerns, leading to international treaties like the Ottawa Treaty aimed at banning their use.