Related Rule
Ukraine
Practice Relating to Rule 42. Works and Installations Containing Dangerous Forces
Ukraine’s IHL Manual (2004) states: “Objects protected by international humanitarian law [include] ‘objects of particular danger’ [works and installations containing dangerous forces] … Attacks against such objects shall be prohibited.” 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, § 1.2.51.
The manual further states:
1.2.47. Objects of particular danger (works or installations containing dangerous forces) are: nuclear electrical generating stations, dams, dykes and so on. The destruction of such objects may cause the release of dangerous forces and consequent severe losses among the civilian population.
An object of particular danger loses its protection (status) … if:
- due to the change of the regime of its normal functioning regular, significant and direct support of military operations of the enemy is performed; and
- if such attack is the only feasible way to terminate such support.
Stripping objects of particular danger of their protection shall be viewed as an extraordinary measure, the commander (commanding officer) must take all practical precautionary measures to prevent the release of dangerous forces.
1.8.5. Serious violations of international humanitarian law directed against people include:
- attacks against works and installations containing dangerous forces in the knowledge that such an attack will cause excessive loss of life to civilians or severe damage to civilian objects. 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, §§ 1.2.47 and 1.8.5; see also §§ 1.2.51 and 2.3.5.2.