For the 1936 treaty, see Second London Naval Treaty.
London Naval Treaty
International Treaty for the Limitation and Reduction of Naval Armament
Members of the United States delegation en route to the conference, January 1930
Type
Arms control
Context
World War I
Signed
22 April 1930 (1930-04-22)
Location
London
Effective
27 October 1930 (1930-10-27)
Expiration
31 December 1936 (1936-12-31) (Except for Part IV)
Negotiators
Henry L. Stimson
Ramsay MacDonald
André Tardieu
Dino Grandi
Wakatsuki Reijirō
Signatories
Herbert Hoover
George V
Gaston Doumergue
Victor Emmanuel III
Hirohito
Parties
United States
British Empire
French Third Republic
Kingdom of Italy
Empire of Japan
Depositary
League of Nations
Language
English
The London Naval Treaty, officially the Treaty for the Limitation and Reduction of Naval Armament, was an agreement between the United Kingdom, Japan, France, Italy, and the United States that was signed on 22 April 1930. Seeking to address issues not covered in the 1922 Washington Naval Treaty, which had created tonnage limits for each nation's surface warships, the new agreement regulated submarine warfare, further controlled cruisers and destroyers, and limited naval shipbuilding.
Ratifications were exchanged in London on 27 October 1930, and the treaty went into effect on the same day, but it was largely ineffective.[1]
The treaty was registered in League of Nations Treaty Series on 6 February 1931.[2]
^John Maurer, and Christopher Bell, eds. At the crossroads between peace and war: the London Naval Conference in 1930 (Naval Institute Press, 2014).
^League of Nations Treaty Series, vol. 112, pp. 66–96.
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