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International | Central Europe | Belgium
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Treaty between Great Britain and Prussia, relative to the Independence and Neutrality of Belgium. (London) August 9, 1870
in French: Hertslet, ii, No.427

Her Majesty the Queen of the United Kingdom of Great Britain and Ireland, and His Majesty the King of Prussia, being desirous at the present time of recording in a solemn Act their fixed determination to maintain the Independence and Neutrality of Belgium, as provided in Article VII of the Treaty signed at London on the 19th April, 1839, between Belgium and the Netherlands, which Article was declared by the Quintuple Treaty of 1839 to be considered as having the same force and value as if textually inserted in the said Quintuple Treaty, their said Majesties have determined to conclude between themselves a separate Treaty, which, without impairing or invalidating the conditions of the said Quintuple Treaty, shall be subsidiary and accessory to it; and they have accordingly named as their Plenipotentiaries for that purpose, that is to say:
Her Majesty the Queen of the United Kingdom of Great Britain and Ireland, the Right Honourable Granville George Earl Granville, Lord Leveson, Her Britannic Majesty's Principal Secretary of State for Foreign Affairs, &c.; (p.40) And His Majesty the King of Prussia, his Excellency the Minister of State, Albert Count of Bernstorff-Stintenburg, Ambassador Extraordinary and Plenipotentiary to Her Britannic Majesty from His said Majesty for the North German Confederation &c.; Who, after having communicated to each other their respective Full Powers, found in good and due form, have agreed upon and concluded the following Articles:
Article I. His Majesty the King of Prussia having declared that notwithstanding the Hostilities in wjich the North German Confederation is engaged with France, it is his fixed determination to respect the Neutrality of Belgium, so long as the same shall be respected by France, Her Majesty the Queen of the United Kingdom of Great Britain and Ireland on her part declares that if during the said Hostilities the Armies of France should violate that Neutrality, she will be prepared to co-operate with His Majesty for the defense of the same in such manner as may be mutually agreed upon, employing for that purpose her Naval and Military Forces to insure its observance, and to maintain, in conjunction with His Prussian Majesty, then and thereafter, the Independence and Neutrality of Belgium.
It is clearly understood that Her Majesty the Queen of the United Kingdom of Great Britain and Ireland does not engage herself by this Treaty to take part in any of the general operation of the War now carried on between the North German Confederation and France, beyond the Limits of Belgium, as defined in the Treaty between Belgium and the Netherlands of 19th April, 1839.
Article II. His Majesty the King of Prussia agrees on his part, in the event provided for in the foregoing Article, to co-operate with Her Majesty the Queen of (p.41) the United Kingdom of Great Britain and Ireland, employing his Naval and Military Forces for the purpose aforesaid; and, the case arising, to concert with Her Majesty the measures which shall be taken, separately oe in common, to secure the Neutrality and Independence of Belgium.
Article III. This Treaty shall be binding on the High Contracting Parties during the continuance of the present War between the North German Confederation and France, and for 12 months after the Ratification of any Treaty of Peace concluded between those Parties ; and on the expiration of that time the Independence and Neutrality of Belgium will, so far as the High Contracting Parties are respectively concerned, continue to rest as heretofore on Article I of the Quintuple Treaty of the 19th April 1839.


R.B. Mowat, Select Treaties and Documents 1815-1916, Oxford : Clarendon Press, 1916, pp.39-41

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