The Washington Naval Conference, was a disarmament conference called by The United States and held in Washington, D.C., from November 12, 1921 to February 6, 1922. It was conducted outside the auspice of the League of Nations. It was attended by nine nations—the United States, Japan, China, France, Britain, Italy, Belgium, Netherlands, and Portugal[1][2]—regarding interests in the Pacific Ocean and East Asia.