Related Rule
Finland
Practice Relating to Rule 42. Works and Installations Containing Dangerous Forces
Section A. Attacks against works and installations containing dangerous forces and against military objectives located in their vicinity
In 1977, during a debate in the Sixth Committee of the UN General Assembly, Finland noted that Article 56 of the 1977 Additional Protocol I contained important and timely principles that should be respected under all circumstances. However, it found the text tangled with ambiguities owing to concessions made to military requirements. 
Finland, Statement before the Sixth Committee of the UN General Assembly, UN Doc. A/C.6/SR.17, 13 October 1977, § 19.