Self-defence: Difference between revisions

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! scope="col" style="background-color:#ffffaa;"| [[Self-defence]]
! scope="col" style="background-color:#ffffaa;"| [[Self-defence]]
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|A State may respond with force to a cyber operation that qualifies as an “armed attack” pursuant to the customary right to self-defence, as codified in Article 51 of the UN Charter. Most commentators consider only grave uses of force – typically, those that kill or injure persons or damage or destroy property – to constitute armed attacks.<ref>''[https://www.icj-cij.org/files/case-related/70/070-19860627-JUD-01-00-EN.pdf Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America)]'' (Merits) [1986] ICJ Rep 14, para 95.</ref>
|[[File:Self-defence.svg|alt=|left|frameless|200x200px]]A State may respond with force to a cyber operation that qualifies as an “armed attack” pursuant to the customary right to self-defence, as codified in Article 51 of the UN Charter. Most commentators consider only grave uses of force – typically, those that kill or injure persons or damage or destroy property – to constitute armed attacks.<ref>''[https://www.icj-cij.org/files/case-related/70/070-19860627-JUD-01-00-EN.pdf Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America)]'' (Merits) [1986] ICJ Rep 14, para 95.</ref>


The United States, however, takes an outlier position, consistently arguing that any illegal use of force gives rise to the use of force in self-defence.<ref>US Department of Defense, Office of the General Counsel, Law of War Manual (June 2015), paras. 1.11.5.2, 16.3.3.1.</ref>
The United States, however, takes an outlier position, consistently arguing that any illegal use of force gives rise to the use of force in self-defence.<ref>US Department of Defense, Office of the General Counsel, Law of War Manual (June 2015), paras. 1.11.5.2, 16.3.3.1.</ref>


In Nicaragua, the ICJ identified “scale and effects” as criteria upon which to judge whether a use of force constitutes an armed attack. In the Court’s view, only “the most grave” uses of force do so.<ref>''[https://www.icj-cij.org/files/case-related/70/070-19860627-JUD-01-00-EN.pdf Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America)]'' (Merits) [1986] ICJ Rep 14, para 191.</ref> Thus, only cyber operations that seriously injure or kill a number of persons or cause significant damage to, or destruction of, property would undoubtedly constitute armed attacks.<ref>[https://doi.org/10.1017/9781316822524 Tallinn Manual 2.0], commentary to rule 71, para 8.</ref>
In Nicaragua, the ICJ identified “scale and effects” as criteria upon which to judge whether a use of force constitutes an armed attack. In the Court’s view, only “the most grave” uses of force do so.<ref>''[https://www.icj-cij.org/files/case-related/70/070-19860627-JUD-01-00-EN.pdf Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America)]'' (Merits) [1986] ICJ Rep 14, para 191.</ref> Thus, only cyber operations that seriously injure or kill a number of persons or cause significant damage to, or destruction of, property would undoubtedly constitute armed attacks.<ref>[https://doi.org/10.1017/9781316822524 Tallinn Manual 2.0], commentary to rule 71, para 8.</ref>
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== Appendixes ==
==Appendixes==


=== See also ===
===See also===
* [[Scenario 14: Ransomware campaign]]


*[[Scenario 14: Ransomware campaign]]
=== Notes and references ===

===Notes and references===
<references />
<references />


=== Bibliography and further reading ===
=== Bibliography and further reading===
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* MN Schmitt (ed), ''Tallinn Manual 2.0 on the International Law Applicable to Cyber Operations'' (CUP 2017)
* MN Schmitt (ed), ''Tallinn Manual 2.0 on the International Law Applicable to Cyber Operations'' (CUP 2017)

Revision as of 15:59, 27 April 2020

Definition

Self-defence
A State may respond with force to a cyber operation that qualifies as an “armed attack” pursuant to the customary right to self-defence, as codified in Article 51 of the UN Charter. Most commentators consider only grave uses of force – typically, those that kill or injure persons or damage or destroy property – to constitute armed attacks.[1]

The United States, however, takes an outlier position, consistently arguing that any illegal use of force gives rise to the use of force in self-defence.[2]

In Nicaragua, the ICJ identified “scale and effects” as criteria upon which to judge whether a use of force constitutes an armed attack. In the Court’s view, only “the most grave” uses of force do so.[3] Thus, only cyber operations that seriously injure or kill a number of persons or cause significant damage to, or destruction of, property would undoubtedly constitute armed attacks.[4]

Appendixes

See also

Notes and references

  1. Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America) (Merits) [1986] ICJ Rep 14, para 95.
  2. US Department of Defense, Office of the General Counsel, Law of War Manual (June 2015), paras. 1.11.5.2, 16.3.3.1.
  3. Military and Paramilitary Activities in and against Nicaragua (Nicaragua v United States of America) (Merits) [1986] ICJ Rep 14, para 191.
  4. Tallinn Manual 2.0, commentary to rule 71, para 8.

Bibliography and further reading