Règle correspondante
Islamic Republic of Iran
Practice Relating to Rule 71. Weapons That Are by Nature Indiscriminate
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, the Islamic Republic of Iran stated:
Some of the principles of humanitarian international law from which one can deduce the illegitimacy of the use of nuclear weapons are: … Prohibition of the use of instruments that cause indiscriminate effects, including means and methods that are used suddenly and equally against both civilian and military targets. 
Islamic Republic of Iran, Written statement submitted to the ICJ, Nuclear Weapons case, 19 June 1995, p. 2; see also Written statement submitted to the ICJ, Nuclear Weapons (WHO) case, undated, p. 1.
In its oral pleadings before the ICJ in the Nuclear Weapons case in 1995, the Islamic Republic of Iran stated: “The prohibition of weapons or tactics that cause indiscriminate harm between combatants and non combatants is another argument against the legality of the use of nuclear weapons.” 
Islamic Republic of Iran, Oral pleadings before the ICJ, Nuclear Weapons case, 6 November 1995, p. 30.
According to the Report on the Practice of the Islamic Republic of Iran, the Islamic Republic of Iran’s “opinio juris is supportive of not using indiscriminate weapons (because in Iran’s view civilians must be protected against war effects)”. 
Report on the Practice of the Islamic Republic of Iran, 1997, Chapter 3.3.