The resolution also demanded that Israel immediately end its lawful maritime blockade of the Gaza coast and slammed Israel for violating the principle of proportionality.

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He addresses such questions as: May a State ever respond to a computer network attack by exercising a right of national self-defense? and: Must attacks adhere to the principle of proportionality?

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The ATTP then goes on in Paragraphs 1-5 through 1-11 to explain the requirements of the law of armed conflict, the principle of military necessity, the principle of distinction, the principle of proportionality, and the principle of humanity.

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"Drone attacks do raise serious questions about compliance with international law, in particular the principle of distinction and proportionality, " Ms Pillay said.

BBC: US drone strikes 'raise questions' - UN's Navi Pillay