In addition, on October 5, President Franklin D. Roosevelt gave the Quarantine Speech, calling for the United States to help nations fight against aggressor nations. This speech had a tremendous effect on raising China's morale. Because America seemed willing to confront Japan, the British representative suggested to close the League case and convene the Nine Power Treaty Conference. Since the Nine-Power Treaty was signed as a result of the Washington Naval Conference of 1922, the opening of the Conference automatically brought the United States into the effort to rein in Japanese aggression.