Weapon
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A weapon, arm, or armament is any implement or device that is used to deter, threaten, inflict physical damage, harm, or kill. Weapons are used to increase the efficacy and efficiency of activities such as hunting, crime, law enforcement, self-defense, warfare, or suicide. In a broader context, weapons may be construed to include anything used to gain a tactical, strategic, material, or mental advantage over an adversary or enemy target.
Selection of weapons collected by security officers at an airport
An array of Neolithic artifacts, including bracelets, axe heads, chisels, and polishing tools.
A four-wheeled ballista drawn by armored cataphract horses, c. 400
Medieval Indian weapons
Self-defense
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Self-defense is a countermeasure that involves defending the health and well-being of oneself from harm. The use of the right of self-defense as a legal justification for the use of force in times of danger is available in many jurisdictions.
This telescopic steel security baton is sold to the public in Japan (2009).
Demonstration of a jujutsu defense against a knife attack. Berlin, 1924.
A Bangladesh Rifles Senior Warrant Officer (left in yellow/green outfit) applies a mechanical advantage control/hold to a United States Marine during a demonstration.
Image: Knee Kick to Groin