weapon - For other uses, see Weapon (disambiguation).See military technology and equipment for a comprehensive list of weapons and doctrines.A nuclear weapon is an explosivedevice that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. ...A weapon is a tool used to apply r threaten to apply force for the purpose of hunting, attack, self-defense, or defense in combat. Weapons can be as simple as a club,or as complex as an intercontinent balallistic missile, and include those that damage individual or group morale.Very simple weapon use has been seen in some communities of chimpanzees.leading to speculation that early hominids may have first used weapons five million years ago.but these would probably have been wooden clubs, spears and unshaped stones—none of which would leave an unambiguous The earliest unambiguous examples of weapons are:Eight wooden throwing spears, the Schöninger Speere, which have been dated as # 400,000 years ago.[3] By 250,000 years ago wooden spears were made with fire-hardened points.