3. On the date of the coming into force referred to in the preceding paragraph, Parts I, II, IV and V of the present Treaty will come into force in respect of the French Republic and the Kingdom of Italy if their ratifications have been deposited at that date; otherwise these Parts will come into force in respect of each of those Powers on the deposit of its ratification.

4. The rights and obligations resulting from Part III of the present Treaty are limited to the High Contracting Parties mentioned in paragraph 2 of this Article. The High Contracting Parties will agree as to the date on which, and the conditions under which, the obligations assumed under the said Part III by the High Contracting Parties mentioned in paragraph 2 of this Article will bind them in relation to France and Italy; such agreement will determine at the same time the corresponding obligations of France and Italy in relation to the other High Contracting Parties.

ARTICLE 25.

After the deposit of the ratifications of all the High Contracting Parties, His Majesty's Government in the United Kingdom of Great Britain and Northern Ireland will communicate the provisions inserted in Part IV of the present Treaty to all Powers which are not signatories of the said Treaty, inviting them to accede thereto definitely and without limit of time.

Such accession shall be effected by a declaration addressed to His Majesty's Government in the United Kingdom of Great Britain and Northern Ireland.

ARTICLE 26.

The present Treaty, of which the French and English texts are both authentic, shall remain deposited in the archives of His Majesty's Government in the United Kingdom of Great Britain and Northern Ireland. Duly certified copies thereof shall be transmitted to the Governments of all the High Contracting Parties.

In faith whereof the above-named Plenipotentiaries have signed the present Treaty and have affixed thereto their seals.

Done at London, the twenty-second day of April, nineteen hundred and thirty.

(Signatures omitted.)

7. LIMITATION OF NAVAL ARMAMENT, LONDON, MARCH 25, 1936,1 TOGETHER WITH PROTOCOL OF SIGNATURE AND ADDITIONAL PROTOCOL.

The President of the United States of America, the President of the French Republic and His Majesty the King of Great Britain, Ireland and the British Dominions beyond the Seas, Emperor of India;

Desiring to reduce the burdens and prevent the dangers inherent in competition in naval armament;

Desiring, in view of the forthcoming expiration of the Treaty for the Limitation of Naval Armament signed at Washington on the 6th

1 Department of State. Treaty Series No. 919.

February, 1922, and of the Treaty for the Limitation and Reduction of Naval Armament signed in London on the 22nd April, 1930 (save for Part IV thereof), to make provision for the limitation of naval armament, and for the exchange of information concerning naval construction:

Have resolved to conclude a Treaty for these purposes and have appointed as their Plenipotentiaries:

Here follows the list of Plenipotentiaries.]

Who, having communicated to one another their full powers, found in good and due form have agreed as follows:

PART I-DEFINITIONS

Article 1

For the purposes of the present Treaty, the following expressions are to be understood in the sense hereinafter defined.

A.-Standard Displacement.

(1) The standard displacement of a surface vessel is the displacement of the vessel, complete, fully manned, engined, and equipped ready for sea, including all armament and ammunition, equipment, outfit, provisions and fresh water for crew, miscellaneous stores and implements of every description that are intended to be carried in war, but without fuel or reserve feed water on board.

(2) The standard displacement of a submarine is the surface displacement of the vessel complete (exclusive of the water in nonwatertight structure), fully manned, engined and equipped ready for sea, including all armament and ammunition, equipment, outfit, provisions for crew, miscellaneous stores and implements of every description that are intended to be carried in war, but without fuel, lubricating oil, fresh water or ballast water of any kind on board.

(3) The word "ton" except in the expression "metric tons" denotes the ton of 2,240 lb. (1,016 kilos).

B.-Categories.

(1) Capital Ships are surface vessels of war belonging to one of the two following sub-categories:

(a) surface vessels of war, other than aircraft carriers, auxiliary vessels, or capital ships of sub-category (b), the standard displacement of which exceeds 10,000 tons (10,160 metric tons) or which carry a gun with a calibre exceeding 8 in. (203 mm.); (b) surface vessels of war, other than aircraft-carriers, the standard displacement of which does not exceed 8.000 tons (8.128 metric tons) and which carry a gun with a calibre exceeding 8 in. (203 mm.).

(2) Aircraft-Carriers are surface vessels of war, whatever their displacement, designed or adapted primarily for the purpose of carrying and operating aircraft at sea. The fitting of a landing on or flying-off deck on any vessel of war, provided such vessel has not been designed or adapted primarily for the purpose of carrying and operating aircraft at sea, shall not cause any vessel so fitted to be elsssified in the category of aircraft-carriers.

The category of aircraft-carriers is divided into two sub-categories as follows:

(a) vessels fitted with a flight deck, from which aircraft can take off, or on which aircraft can land from the air;

(b) vessels not fitted with a flight deck as described in (a) above.

(3) Light Surface Vessels are surface vessels of war other than aircraft-carriers, minor war vessels or auxiliary vessels, the standard displacement of which exceeds 100 tons (102 metric tons) and does not exceed 10,000 tons (10,160 metric tons), and which do not carry a gun with a calibre exceeding 8 in. (203 mm.).

The category of light surface vessels is divided into three subcategories as follows:

(a) vessels which carry a gun with a calibre exceeding 6.1 in. (155 mm.);

(b) vessels which do not carry a gun with a calibre exceeding 6.1 in. (155 mm.) and the standard displacement of which exceeds 3,000 tons (3,048 metric tons);

(c) vessels which do not carry a gun with a calibre exceeding 6.1 in. (155 mm.) and the standard displacement of which does not exceed 3,000 tons (3,048 metric tons).

(4) Submarines are all vessels designed to operate below the surface of the sea.

(5) Minor War Vessels are surface vessels of war, other than auxiliary vessels, the standard displacement of which exceeds 100 tons (102 metric tons) and does not exceed 2,000 tons (2,032 metric tons), provided they have none of the following characteristics:— (a) mount a gun with a calibre exceeding 6.1 in. (155 mm.) (b) are designed or fitted to launch torpedoes;

(c) are designed for a speed greater than twenty knots. (6) Auxiliary Vessels are naval surface vessels the standard displacement of which exceeds 100 tons (102 metric tons), which are normally employed on fleet duties or as troop transports, or in some other way than as fighting ships, and which are not specifically built as fighting ships, provided they have none of the following characteristics:

(a) mount a gun with a calibre exceeding 6.1 inch. (155 mm.); (b) mount more than eight guns with a calibre exceeding 3 in. (76 mm.);

(c) are designed or fitted to launch torpedoes;

(d) are designed for protection by armour plate;

(e) are designed for a speed greater than twenty-eight knots; are designed or adapted primarily for operating aircraft at

sea;

(g) mount more than two aircraft-launching apparatus. (7) Small Craft are naval surface vessels the standard displacement of which does not exceed 100 tons (102 metric tons).

C.-Over Age.

Vessels of the following categories and sub-categories shall be deemed to be "over-age" when the undermentioned number of years have elapsed since completion:

D.-Month.

The word "month" in the present Treaty with reference to a period of time denotes the month of thirty days.

PART II-LIMITATION

ARTICLE 2

After the date of the coming into force of the present Treaty, no vessel exceeding the limitations as to displacement or armament prescribed by this Part of the present Treaty shall be acquired by any High Contracting Party or constructed by, for or within the jurisdiction of any High Contracting Party.

ARTICLE 3

No vessel which at the date of the coming into force of the present Treaty carries guns with a calibre exceeding the limits prescribed by this Part of the present Treaty shall, if reconstructed or modernised, be rearmed with guns of a greater calibre than those previously carried by her.

ARTICLE 4

(1) No capital ship shall exceed 35,000 tons (35,560 metric tons) standard displacement.

(2) No capital ship shall carry a gun with a calibre exceeding 14 in. (356 mm.); provided however that if any of the Parties to the Treaty for the Limitation of Naval Armament signed at Washington on the 6th February, 1922, should fail to enter into an agreement to conform to this provision prior to the date of the coming into force of the present Treaty, but in any case not later than the 1st April, 1937, the maximum calibre of gun carried by capital ships shall be 16 in. (406 mm.).

(3) No capital ship of sub-category (a), the standard displacement of which is less than 17,500 tons (17,780 metric tons), shall be laid down or acquired prior to the 1st January, 1943.

(4) No capital ship, the main armament of which consists of guns of less than 10 in. (254 mm.) calibre, shall be laid down or acquired prior to the 1st January, 1943.

ARTICLE 5

(1) No aircraft carrier shall exceed 23,000 tons (23,368 metric tons) standard displacement or carry a gun with a calibre exceeding 6.1 in. (155 mm.).

(2) If the armament of any aircraft carrier includes guns exceeding 5.25 in. (134 mm.) in calibre, the total number of guns carried which exceed that calibre shall not be more than ten.

ARTICLE 6

(1) No light surface vessel of sub-category (b) exceeding 8,000 tons (8,128 metric tons) standard displacement, and no light surface vessel of sub-category (a) shall be laid down or acquired prior to the 1st January, 1943.

(2) Notwithstanding the provisions of paragraph (1) above, if the requirements of the national security of any High Contracting Party are, in His opinion, materially affected by the actual or authorised amount of construction by any Power of light surface vessels of sub-category (b), or of light surface vessels not conforming to the restrictions of paragraph (1) above, such High Contracting Party shall, upon notifying the other High Contracting Parties of His intentions and the reasons therefor, have the right to lay down. or acquire light surface vessels of sub-categories (a) and (b) of any standard displacement up to 10,000 tons (10,610 metric tons) subject to the observance of the provisions of Part III of the present Treaty. Each of the other High Contracting Parties shall thereupon be entitled to exercise the same right.

(3) It is understood that the provisions of paragraph (1) above constitute no undertaking expressed or implied to continue the restrictions therein prescribed after the year 1942.

ARTICLE 7

No submarine shall exceed 2,000 tons (2,032 metric tons) standard displacement or carry a gun exceeding 5.1 in. (130 mm.) in calibre.

ARTICLE 8

Every vessel shall be rated at its standard displacement, as defined in Article 1A of the present Treaty.

ARTICLE 9

No preparations shall be made in merchant ships in time of peace for the installation of warlike armaments for the purpose of converting such ships into vessels of war, other than the necessary stiffening of decks for the mounting of guns not exceeding 6.1 in. (155 mm.) in calibre.

ARTICLE 10

Vessels which were laid down before the date of the coming into force of the present Treaty, the standard displacement or armament of which exceeds the limitations or restrictions prescribed in this Part of the present Treaty for their category or sub-category, or vessels which before that date were converted to target use exclusively or retained exclusively for experimental or training purposes under the provision of previous treaties, shall retain the category or designation which applied to them before the said date.

PART III-ADVANCE NOTIFICATION AND EXCHANGE OF INFORMATION

ARTICLE 11

(1) Each of the High Contracting Parties shall communicate every year to each of the other High Contracting Parties information, as hereinafter provided, regarding His annual programme for the construction and acquisition of all vessels of the categories and sub-categories mentioned in Article 12 (a), whether or not the vessels concerned are constructed within His own jurisdiction, and