The biggest issue in the negotiations over the peace settlement concerned what to do about Japan’s security policy after the peace treaty. Prime Minister Yoshida Shigeru, who concluded both the Treaty of Peace with the Allies and the Security Treaty with the United States, avoided America’s call for Japan to rearm and emphasized economic recovery instead. On the other hand, Hatoyama Ichiro, who succeeded Yoshida, established relations with the Soviet Union and sought an autonomous foreign policy. After Japan successfully joined the United Nations, Prime Minister Kishi Nobusuke proceeded to undertake negotiations with the United States to revise the Japan-U.S. Security Treaty and make both it and the relationship more mutual.