The Deaths of Combatants
Although there are few restrictions on killing combatants, the contemporary law of war bans weapons that cause superfluous injury and unnecessary suffering. Because military necessity and humanitarian norms often conflict, no clear regulations have emerged. Instead, states sometimes ban weapons because they cause horrific wounds. But this determination is subjective and has led the Red Cross to seek objective medical guidelines on unnecessary suffering. A close look shows how it is often difficult to apply these guidelines to new non-lethal technologies, which include electromagnetic, pharmacological, and neurological weapons. These weapons do not cause obvious injury and suffering and may even reduce combatant and civilian injuries. Nevertheless, they can cause intense transient pain or impinge upon human dignity when they undermine cognitive capabilities. Weighing the costs of new technologies against their benefits remains an abiding challenge for humanitarian law.