Nerve gas - Just a pinprick-sized droplet will kill a human

Chemical weapons require a relatively low investment, can cause severe psychological and physical effects and are agents of disruption.

Modern chemical weapons were introduced during World War I in an effort to reduce the deadlock of trench warfare. But they are subject to topography and weather patterns.

As munitions have become more precise, their tactical advantage is being eroded. Today, they horrify more than they contribute to victories on the ground.

Their indiscriminate nature and unpredictability, coupled with the sometimes-gruesome effects they have make them effective weapons of fear.
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