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LIMITATION AND REDUCTION OF NAVAL
ARMAMENT (LONDON NAVAL TREATY)

  • Treaty signed at London April 22, 1930; exchanges of notes relating to interpretation of article 19 dated May 21, May 24, and June 5, 1930
  • Senate advice and consent to ratification, with understandings, July 21, 1930[1]
  • Ratified by the President of the United States, with understandings, July 22, 1930[1]
  • Ratifications deposited at London October 27, 1930
  • Entered into force December 31,1930
  • Proclaimed by the President of the United States January 1, 1931
  • Expired December 31, 1936, with the exception of Part IV[2]

46 Stat. 2858; Treaty Series 830

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

Desiring to prevent the dangers and reduce the burdens inherent in competitive armaments, and

Desiring to carry forward the work begun by the Washington Naval Conference and to facilitate the progressive realization of general limitation and reduction of armaments,

Have resolved to conclude a Treaty for the limitation and reduction of naval armament, and have accordingly appointed as their Plenipotentiaries:


  1. 1.0 1.1 The U.S. understandings read as follows:

    "Subject to the distinct and explicit understandings that there are no secret files, documents, letters, understandings or agreements which in any way, directly or indirectly, modify, change, add to, or take from any of the stipulations, agreements or statements in the said treaty; and that, excepting the agreement brought about through the exchange of notes between the Governments of the United States, Great Britain and Japan, having reference to Article 19, there is no agreement, secret or otherwise, expressed or implied, between any of the parties to the said treaty as to any construction that shall hereafter be given to any statement or provision contained therein."

  2. See arts. 22 and 23, pp. 1070 and 1071.
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