The Washington Naval Treaty, also known as the Five-Power Treaty, was a treaty among the major nations that had won World War I, which by the terms of the treaty agreed to prevent an arms race by limiting naval construction. It was negotiated at the Washington Naval Conference, which was held in Washington, D.C. from November 1921 to February 1922, and signed by the governments of the United Kingdom, the United States, Japan, France, and Italy. It limited the construction of battleships, battlecruisers and aircraft carriers by the signatories. The numbers of other categories of warships, including cruisers, destroyers and submarines, were not limited by the treaty but were limited to 10,000 tons displacement.