Agreement of Mutual Assistance between the United Kingdom and Poland.-London, August 25, 1939.
THE Government of the United Kingdom of Great Britain and Northern Ireland and the Polish Government:
Desiring to place on a permanent basis the collaboration between their respective countries resulting from the assurances of mutual assistance of a defensive character which they have already exchanged:
Have resolved to conclude an Agreement for that purpose and have appointed as their Plenipotentiaries:
The Government of the United Kingdom of Great Britain and Northern Ireland:
The Rt. Hon. Viscount Halifax, K.G., G.C.S.I., G.C.I.E., Principal Secretary of State for Foreign Affairs;
The Polish Government:
His Excellency Count Edward Raczynski, Ambassador Extraordinary and Plenipotentiary of the Polish Republic in London;
Who, having exchanged their Full Powers, found in good and due form, have agreed following provisions:-
Should one of the Contracting Parties become engaged in hostilities with a European Power in consequence of aggression by the latter against that Contracting Party, the other Contracting Party will at once give the Contracting Party engaged in hostilities all the support and assistance in its power.
(1) The provisions of Article I will also apply in the event of any action by a European Power which clearly threatened, directly or indirectly, the independence of one of the Contracting Parties, and was of such a nature that the Party in question considered it vital to resist it with its armed forces.
(2) Should one of the Contracting Parties become engaged in hostilities with a European Power in consequence of action by that Power which threatened the independence or neutrality of another European State in such a way as to constitute a clear menace to the security of that Contracting Party, the provisions of Article I will apply, without prejudice, however, to the rights of the other European State concerned.
Should a European Power attempt to undermine the independence of one of the Contracting Parties by processes of economic penetration or in any other way, the Contracting Parties will support each other in resistance to such attempts. Should the European Power concerned thereupon embark on hostilities against one of the Contracting Parties, the provisions of Article I will apply.
The methods of applying the undertakings of mutual assistance provided for by the present Agreement are established between the competent naval, military and air authorities of the Contracting Parties.
Without prejudice to the foregoing undertakings of the Contracting Parties to give each other mutual support and assistance immediately on the outbreak of hostilities, they will exchange complete and speedy information concerning any development which might threaten their independence and, in particular, concerning any development which threatened to call the said undertakings into operation.
(1) The Contracting Parties will communicate to each other the terms of any undertakings of assistance against aggression which they have already given or may in future give to other States.
(2) Should either of the Contracting Parties intend to give such an undertaking after the coming into force of the present Agreement, the other Contracting Party shall, in order to ensure the proper functioning of the Agreement, be informed thereof.
(3) Any new undertaking which the Contracting Parties may enter into in future shall neither limit their obligations under the present Agreement nor indirectly create new obligations between the Contracting Party not participating in these undertakings and the third State concerned.
Should the Contracting Parties be engaged in hostilities in consequence of the application of the present Agreement, they will not conclude an armistice or treaty of peace except by mutual agreement.
(1) The present Agreement shall remain in force for a period of five years.
(2) Unless denounced six months before the expiry of this period it shall continue in force, each Contracting Party having thereafter the right to denounce it at any time by giving six months’ notice to that effect.
(3) The present Agreement shall come into force on signature.
In faith whereof the above-named Plenipotentiaries have signed the present Agreement and have affixed thereto their seals.
Done in English in duplicate, at London, the 15th August, 1939. A Polish text shall subsequently be agreed upon between the Contracting Parties and both texts will then be authentic.
(L.S.) EDWARD RACZYNSKI.