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Foreign Policy

United States signs the Five-Power (Washington Naval) Treaty

On February 6, 1922, the United States and four other major naval powers (United Kingdom, Japan, France, and Italy) signed the Five-Power Treaty at the Washington Naval Conference to limit capital ship construction and set tonnage ratios.

The treaty established the first systematic naval arms-limitation regime, slowing a post‑World War I naval arms race and shaping naval policy and balance of power for the next decade.

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