# Treaty of London (1915)

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London: His Majesty's Stationery Office, 1920 (Miscellaneous. No. 7)
Agreement between France, Russia, Great Britain and Italy.
Signed at London April 26, 1915.
BY Order of his Government the Marquis Imperiali, Ambassador of His Majesty the King of Italy, has the honour to communicate to the Rt. Hon. Sir Edward Grey, His Britannic Majesty’s Principal Secretary of State for Foreign Affairs, and to their Excellencies M. Paul Cambon, Ambassador of the French Republic, and to Count de Benckendorff, Ambassador of His Majesty the Emperor of All the Russias, the following memorandum:—
Memorandum.
Article 1.
A military convention shall be immediately concluded between the General Staffs of France, Great Britain, Italy and Russia. This convention shall settle the minimum number of military forces to be employed by Russia against Austria-Hungary in order to prevent that Power from concentrating all its strength against Italy, in the event of Russia deciding to direct her principal effort against Germany.
This military convention shall settle question of armistices, which necessarily comes within the scope of the Commanders-in-chief of the Armies.
Article 2.
On her part, Italy undertakes to use her entire resources for the purpose of waging war jointly with France, Great Britain and Russia against all their enemies.
Article 3.
The French and British fleets shall render active and permanent assistance to Italy until such time as the Austro-Hungarian fleet shall have been destroyed or until peace shall have been concluded.
A naval convention shall be immediately concluded to this effect between France, Great Britain and Italy.
Article 4.
Under the Treaty of Peace Italy shall obtain the Trentino, Cisalpine Tyrol with its geographical and natural frontier (the Brenner frontier), as well as Trieste, the counties of Gorizia and Gradisca, all Istria as far as the Quarnero and including Volosca and the Istrian islands of Cherso and Lussin, as well as the small islands of Plavnik, Unie, Canidole, Palazzuoli, San Pietro di Nembi, Asinello, Gruica, and the neighbouring islets.
Note.
The frontier required to ensure execution of Article 4 hereof shall be traced as follows:—
From the Piz Umbrail as far as north of the Stelvio, it shall follow the crest of the Rhetian Alps up to the sources of the Adige and the Eisach, then following the Reschen and Brenner mountains and the Oetz and Ziller heights. The frontier shall then bend towards the south, cross Mt. Toblach and join the present frontier of the Carnic Alps. It shall follow this frontier line as far as Mt. Tarvis and from Mt. Tarvis the watershed of the Julian Alps by the Predil Pass, Mt. Mangart, the Tricorno (Terglu) and the watersheds of the Podberdo, Podlaniscam and Idria passes. From this point the frontier shall follow a south-easterly direction towards the Schneeberg, leaving the entire basin of the Save and its tributaries outside Italian territory. From the Schneeberg the frontier shall come down to the coast in such a way as to include Castua, Mattuglia and Volosca within Italian territory.
Article 5.
Italy shall also be given the province of Dalmatia within its present administrative boundaries, including to the north Lisarica and Tribania; to the south as far as a line starting from Cape Planka on the coast and following eastwards the crests of the heights forming the watershed, in such a way as to leave within Italian territory all the valleys and streams flowing towards Sebenico—such as the Cicola, Kerka, Butisnica and their tributaries. She shall also obtain all the islands situate to the north and west of Dalmatia, from Premuda, Selve, Ulbo, Scherda, Maon, Pago and Patadura to the north, up to Meleda to the south including Sant’ Andrea, Busi, Lissa, Lesina, Tercola, Curzola, Cazza and Lagosta. as well as the neighbouring ​rocks and islets and Pelagosa, with the exception of Greater and Lesser Zirona, Bua, Solta and Brazza.
To be neutralized:—
(1) The entire coast from Cape Planka on the north to the southern base of the peninsula of Sabbioncello in the south, so as to include the whole of that peninsula; (2) the portion of the coast which begins in the north at a point situated 10 kilometres south of the headland of Ragusa Vecchia extending southward as far as the River Voussa, in such a way as to include the gulf and ports of Cattaro, Antivari, Dulcigno, St. Jean de Medua and Durazzo, without prejudice to the rights of Montenegro consequent on the declarations exchanged between the Powers in April and May 1909. As these rights only apply to the present Montenegrin territory, they cannot be extended to any territory or ports which may be assigned to Montenegro. Consequently neutralisation shall not apply to any part of the coast now belonging to Montenegro. There shall be maintained all restrictions concerning the port of Antivari which were accepted by Montenegro in 1909; (3) finally, all the islands not given to Italy.
Note.
The following Adriatic territory shall be assigned by the four Allied Powers to Croatia, Serbia and Montenegro:—
In the Upper Adriatic, the whole coast from the bay of Volosca on the borders of Istria as far as the northern frontier of Dalmatia, including the coast which is at present Hungarian and all the coast of Croatia, with the port of Fiume and the small ports of Novi and Carlopago, as well as the islands of Veglia, Pervichio, Gregorio, Goli and Arbe. And, in the Lower Adriatic (in the region interesting Serbia and Montenegro) the whole coast from Cape Planka as far as the River Drin, with the important harbours of Spalato, Ragusa, Cattaro, Antivari, Dulcigno and St. Jean de Medua and the islands of Greater and Lesser Zirona, Bua, Solta, Brazza, Jaclian and Calamotta. The port of Durazzo to be assigned to the independent Moslem State of Albania.
Article 6.
Italy shall receive full sovereignty over Valona, the island of Saseno and surrounding territory of sufficient extent to assure defence of these points (from ​the Voïussa to the north and east, approximately to the northern boundary of the district of Chimara on the south).
Article 7.
Should Italy obtain the Trentino and Istria in accordance with the provisions of Article 4, together with Dalmatia and the Adriatic islands within the limits specified in Article 5, and the Bay of Valona (Article 6), and if the central portion of Albania is reserved for the establishment of a small autonomous neutralised State, Italy shall not oppose the division of Northern and Southern Albania between Montenegro, Serbia and Greece, should France, Great Britain and Russia so desire. The coast from the southern boundary of the Italian territory of Valona (see Article 6) up to Cape Stylos shall be neutralised.
Italy shall be charged with the representation of the State of Albania in its relations with foreign Powers.
Italy agrees, moreover, to leave sufficient territory in any event to the east of Albania to ensure the existence of a frontier line between Greece and Serbia to the west of Lake Ochrida.
Article 8.
Italy shall receive entire sovereignty over the Dodecanese Islands which she is at present occupying.
Article 9.
Generally speaking, France, Great Britain and Russia recognise that Italy is interested in the maintenance of the balance of power in the Mediterranean and that, in the event of the total or partial partition of Turkey in Asia, she ought to obtain a just share of the Mediterranean region adjacent to the province of Adalia, where Italy has already acquired rights and interests which formed the subject of an Italo-British convention. The zone which shall eventually be allotted to Italy shall be delimited, at the proper time, due account being taken of the existing interests of France and Great Britain.
The interests of Italy shall also be taken into consideration in the event of the territorial integrity of the Turkish Empire being maintained and of alterations being made in the zones of interest of the Powers.
If France, Great Britain and Russia occupy any territories in Turkey in Asia ​during the course of the war, the Mediterranean region bordering on the Province of Adalia within the limits indicated above shall be reserved to Italy, who shall be entitled to occupy it.
Article 10.
All rights and privileges in Libya at present belonging to the Sultan by virtue of the Treaty of Lausanne are transferred to Italy.
Article 11.
Italy shall receive a share of any eventual war indemnity corresponding to her efforts and her sacrifices.
Article 12.
Italy declares that she associates herself in the declaration made by France, Great Britain and Russia to the effect that Arabia and the Moslem Holy Places in Arabia shall be left under the authority of an independent Moslem Power.
Article 13.
In the event of France and Great Britain increasing their colonial territories in Africa at the expense of Germany, those two Powers agree in principle that Italy may claim some equitable compensation, particularly as regards the settlement in her favour of the questions relative to the frontiers of the Italian colonies of Eritrea, Somaliland and Libya and the neighbouring colonies belonging to France and Great Britain.
Article 14.
Great Britain undertakes to facilitate the immediate conclusion, under equitable conditions, of a loan of at least 50,000,000l. to be issued on the London market.
Article 15.
France, Great Britain and Russia shall support such opposition as Italy may make to any proposal in the direction of introducing a representative of the Holy See in any peace negotiations or negotiations for the settlement of questions raised by the present war.
Article 16.
The present arrangement shall be held secret. The adherence of Italy to the ​Declaration of the 5th September, 1914, shall alone be made public, immediately upon declaration of war by or against Italy.
After having taken act of the foregoing memorandum, the representatives of France, Great Britain and Russia, duly authorised to that effect, have concluded the following agreement with the representative of Italy, also duly authorised by his Government:—
France, Great Britain and Russia give their full assent to the memorandum presented by the Italian Government.
With reference to Articles 1, 2 and 3 of the memorandum, which provide for military and naval co-operation between the four Powers, Italy declares that she will take the field at the earliest possible date and within a period not exceeding one month from the signature of these presents.
In faith whereof the undersigned have signed the present agreement and have affixed thereto their seals.
Done at London, in quadruplicate, the 26th day of April, 1915.
(L.S.) E. GREY.
(L.S.) IMPERIALI.
(L.S.) BENCKENDORFF.
(L.S.) PAUL CAMBON.
II.
Declaration by which France, Great Britain, Italy and Russia undertake not to conclude a Separate Peace during the course of the Present European War.
The Italian Government, having decided to participate in the present war with. the French, British and Russian Governments and to accede to the Declaration made at London, the 5th September, 1914, by the three above-named Governments,
The undersigned, being duly authorised by their respective Governments, make the following declaration:—
The French, British, Italian and Russian Governments mutually undertake not to conclude a separate peace during the course of the present war.
The four Governments agree that, whenever there may be occasion to discuss the terms of peace, none of the Allied Powers shall lay down any conditions of peace without previous agreement with each of the other Allies.
​In faith whereof the undersigned have signed the present Declaration and have affixed thereto their seals.
Done at London, in quadruplicate, the 26th day of April, 1915.
(L.S.) E. GREY.
(L.S.) IMPERIALI.
(L.S.) BENCKENDORFF.
(L.S.) PAUL CAMBON.
III.
DECLARATION.
The Declaration of the 26th April, 1915, whereby France, Great Britain, Italy and Russia undertake not to conclude a separate peace during the present European war, shall remain secret.
After the declaration of war by or against Italy, the four Powers shall sign a new declaration in identical terms, which shall thereupon be made public.
In faith whereof the undersigned have executed the present Declaration and have affixed thereto their seals.
Done at London, in quadruplicate, the 26th day of April, 1915.
(L.S.) E. GREY.
(L.S.) IMPERIALI.
(L.S.) BENCKENDORFF.
(L.S.) PAUL CAMBON.