Five-Power Naval Treaty

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FIVE-POWER NAVAL TREATY, one of seven treaties negotiated at the Washington Conference on Limitation of Armaments (1921–1922). Settlement of Far Eastern questions, principally through the Four-Power and Nine-Power treaties, made possible the 1922 Naval Treaty of Washington, which placed limitations upon capital ships, aircraft carriers, and Far Eastern naval bases. Aggregate battleship tonnage was restricted to 525,000 for the United States and Great Britain, 315,000 for Japan, and 175,000 for France and Italy. This quota required the United States to scrap twenty-eight capital ships then under construction or completed. Competitive building of cruisers, destroyers, and submarines continued until the 1930 London Treaty.


Buckley, Thomas H. The United States and the Washington Conference, 1921–1922. Knoxville: University of Tennessee Press, 1970.

Hogan, Michael J. Informal Entente: The Private Structure of Cooperation in Anglo-American Economic Diplomacy, 1918–1928. Columbia: University of Missouri Press, 1977; Chicago: Imprint, 1991.

Dudley W.Knox/a. g.

See alsoGreat Britain, Relations with ; Japan, Relations with ; Treaties with Foreign Nations ; Washington Naval Conference .