Article 51 of the Geneva Conventions [1]. It is slightly ambiguous on purpose, more details can be found in the commentary [2]. [1] https://ihl-databases.icrc.

Article 51 of the Geneva Conventions [1]. It is slightly ambiguous on purpose, more details can be found in the commentary [2]. [1] https://ihl-databases.icrc.org/en/ihl-treaties/api-1977/article-51 https://ihl-databases.icrc.org/en/ihl-treaties/api-1977/arti... [2] https://ihl-databases.icrc.org/en/ihl-treaties/api-1977/article-51/commentary/1987 https://ihl-databases.icrc.org/en/ihl-treaties/api-1977/arti...