In the PELEUS War Crimes Trial, the British judge advocate characterized 'customary international law' as: "nothing but a body of rules and customs, expressing the common sense of civilized nations." I would like to make my first parenthetical remark at this point by saying that I have been tremendously impressed by the common sense approach of the draft Law Instructions for Naval Warfare.
Briggs, Herbert W.
"The Position of Individuals in International Law,"
Naval War College Review: Vol. 8
, Article 5.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol8/iss5/5