Related Rule
Practice Relating to Rule 15. The Principle of Precautions in Attack
Section A. Constant care to spare the civilian population, civilians and civilian objects
In 1971, during a debate in the Third Committee of the UN General Assembly concerning respect for human rights in armed conflicts, Liberia stated that it “agreed wholeheartedly with the principle that, in the conduct of military operations, every effort should be made to spare civilian populations … as affirmed in [principle 3] of General Assembly resolution 2675 (XXV)”. 
Liberia, Statement before the Third Committee of the UN General Assembly, UN Doc. A/C.3/SR.1890, 1 December 1971, § 8.