Practice Relating to Rule 1. The Principle of Distinction between Civilians and Combatants
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, Solomon Islands stated:
Under international law it is clear beyond any doubt that the use of a nuclear weapon against civilians, whatever the nature or size and destructive power of the weapon, will be rendered illegal by virtue of the application of the customary rule which states that belligerents must always distinguish between combatants and non-combatants and limit their attack only to the former. This is an old and well-established rule which has achieved universal acceptance.