IV. - Protection of the civil population - Art. 5.
Art.5. Defended towns may be attacked with all licit means of war.
Belligerent should do their utmost to hit in such towns none of the buildings dedicated to public worship, charity, and science or having a historic or artistic character.
Such buildings must be indicated by conspicuous signs and, every way, be rendered notorious by suitable means.
Belligerents must respect the provisions of the Geneva Convention of July 27, 1929, for the amelioration of the condition of the wounded and sick in armies in the field: these provisions are, by the present agreement, extended to the civil population.