Countries must, however, do more than recognize cyberspace as a new battleground. They also need to know when and how they can deploy weapons. What are the rules of cyberwar?
For more than a century, nations have devised rules of international law, such as the Geneva Convention, which seek to avoid war or minimize human suffering when conflicts occur. And as new technologies emerge, nations have weighed whether to draft new rules, such as treaties restricting biological, chemical and laser weapons.
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