Paraguay, shall be common to all gratuitously, if they be gratuitous, and with the same compensation if they be conditional. ARTICLE XI The present Government of Paraguay being overthrown, the Allies will proceed to make the necessary arrangements with the authority constituted, to insure the free navigation of the Rivers Parana and Paraguay, in such manner that the regulations or laws of that Republic shall not obstruct, hinder nor burthen the transit and direct navigation of the merchantmen and vessels-of-war of the allied States proceeding to their respective territory, or to territory not belonging to Paraguay, and they will take suitable guarantees for the effectiveness of those arrangements on the base that those regulations of fluvial police, whether they be for those two rivers or likewise for the River Uruguay, shall be made by common accord between the allies and such other bordering States as shall, within the term to be agreed upon by the said allies, accept the invitation made to them. ARTICLE XII The allies reserve to themselves to concert the measures most suitable in order to guarantee peace with the Republic of Paraguay after the overthrow of the present Government. ARTICLE XIII The allies will appoint in due season the Plenipotentiaries required to celebrate the arrangements, Conventions or Treaties that may have to be made with the Government that shall be established in Paraguay. ARTICLE XIV The allies will exact from this Government payment of the expenses of the war which they have seen themselves obliged to accept, as well as reparation and indemnification for the damages and injuries caused to their public and private properties, and to the persons of their citizens, without express declaration of war, and for the damages and injuries committed subsequently in violation of the principles which govern the laws of war. The Oriental Republic of the Uruguay will likewise exact an indemnification proportioned to the damage and injury caused to it by the Government of Paraguay through the war into which it is forced to enter to defend its security threatened by that Government. ARTICLE XV In a special Convention shall be determined the manner and form of liquidating and paying the debt proceeding from the aforesaid causes. ARTICLE XVI In order to avoid the discussions and wars which questions of boundaries involve, it is established that the allies shall exact from the Government of Paraguay that it celebrate definitive boundary