Related Rule
Kenya
Practice Relating to Rule 45. Causing Serious Damage to the Natural Environment
Section A. Widespread, long-term and severe damage
III. Military Manuals
Kenya’s LOAC Manual (1997) provides that it is forbidden “to use methods of warfare which are specifically intended or may be expected to cause widespread, long-term and severe damage to the natural environment”. 
Kenya, Law of Armed Conflict, Military Basic Course (ORS), 4 Précis, The School of Military Police, 1997, Précis No. 4, p. 3; see also Précis No. 2, p. 2.