Related Rule
Yugoslavia, Socialist Federal Republic of
Practice Relating to Rule 45. Causing Serious Damage to the Natural Environment
The Socialist Federal Republic of Yugoslavia’s Military Manual (1988) provides: “It is prohibited to use means and methods of warfare which are designed to or likely to cause massive, long-term and serious damage to the environment.” 
Yugoslavia, Socialist Federal Republic of, Propisi o Primeri Pravila Medjunarodnog Ratnog Prava u Oruzanim Snagama SFRJ, PrU-2, Savezni Sekretarijat za Narodnu Odbranu (Pravna Uprava), 1988, § 97.
The Socialist Federal Republic of Yugoslavia’s Penal Code (1976), as amended in 2001, in a part dealing with “war crimes against civilians”, provides for the punishment of:
any person who may order the following in violation of the rules of international law during armed conflict or occupation: … long-term and widespread damage to the natural environment which may harm the health or survival of the population, or any person who may commit [such] acts. 
Yugoslavia, Socialist Federal Republic, Penal Code, 1976, as amended in 2001, Article 142(2).
At the CDDH, the Socialist Federal Republic of Yugoslavia stated: “Biological and ecological warfare, as developed more particularly in Vietnam, should be placed under the ban of the new body of international humanitarian law.” 
Yugoslavia, Socialist Federal Republic of, Statement at the CDDH, Official Records, Vol. V, CDDH/SR.11, 5 March 1975, p. 105, § 22.
This view was supported by Hungary and North Vietnam. 
CDDH, Official Records, Vol. XIV, CDDH/III/SR.16, 10 February 1975, p. 139, § 55 (Hungary); Official Records, Vol. XIV, CDDH/III/SR.17, 11 February 1975, p. 143, § 10 (North Vietnam).