Section I : Martial law -- Military jurisdiction -- Military necessity -- Retaliation - Art. 19.
Art. 19. Commanders, whenever admissible, inform the enemy of their intention to bombard a place, so that the noncombatants, and especially the women and children, may be removed before the bombardment commences. But it is no infraction of the common law of war to omit thus to inform the enemy. Surprise may be a necessity.