This is ILPI Senior Advisor Nobuo Hayashi’s chapter published in the book entitled The Routledge handbook of the law of armed conflict.
The law of armed conflict is a key element of the global legal order yet it is recognised that this branch of law is often honoured more in the breach than in the observance. The Routledge Handbook of the Law of Armed Conflict provides a unique perspective on the field covering all the key aspects of the law as well as identifying developing and often contentious areas of interest driven by the changes in the nature of warfare.
Read more about the book here.
Hayashi, N 2014, 'Basic principles' in The Routledge handbook of the law of armed conflict, eds R Liivoja & T McCormack, Routledge, March 2015.