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Convention on Maritime Neutrality. Havana, 20 February 1928.
Section II : Duties and rights of belligerents - Art. 10.
Art. 10. Belligerent warships may supply themselves with fuel and stores in neutral ports, under the conditions especially established by the local authority and in case there are no special provisions to that effect, they may supply themselves in the manner prescribed for provisioning in time of peace.