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Project of an International Declaration concerning the Laws and Customs of War. Brussels, 27 August 1874.
On military authority over hostile territory - Art. 5.
Art. 5. The army of occupation shall only collect the taxes, dues, duties, and tolls imposed for the benefit of the State, or their equivalent, if it is impossible to collect them, and, as far as is possible, in accordance with the existing forms and practice. It shall devote them to defraying the expenses of the administration of the country to the same extent as the legitimate Government was so obligated.