War is defined as a state of hostility, conflict, antagonism or struggle between two opposing forces for a particular end. When chemical weapons are added to an existing arsenal, the nature of the conflict is changed in two significant ways. First, the number of deaths and injuries are potentially increased. Secondly, if one country has chemical weapons this causes other countries to devote vast resources to develop a matching arsenal. Since the invention of these weapons, warfare and the threat of warfare has never been the same. The twentieth century saw the development of progressively more deadly chemical weapons. It saw their use, with significant effect, in a world war, in a regional conflict and the first instance of their use by terrorists.
KeywordsNerve Agent Chemical Weapon Colourless Liquid Chemical Warfare Agent Historical Precedent
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