Related Rule
Practice Relating to Rule 12. Definition of Indiscriminate Attacks
Section C. Attacks whose effects cannot be limited as required by international humanitarian law
At the CDDH, Mexico stated: “The protection of the civilian population and civilian objects must be universally recognized, even at the cost of restricting the use of means and methods of warfare, the effects of which cannot be confined to specific military targets.” Mexico believed Article 51 of the 1977 Additional Protocol I to be so essential that it “cannot be the subject of any reservations whatsoever since these would be inconsistent with the aim and purpose of Protocol I and undermine its basis”. 
Mexico, Statement at the CDDH, Official Records, Vol. VI, CDDH/SR.41, 26 May 1977, pp. 192–193.
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, Mexico stated: “In accordance with international humanitarian law, indiscriminate attacks are those that can reach both military targets and civilians.” 
Mexico, Written statement submitted to the ICJ, Nuclear Weapons case, 19 June 1995, § 77(d).