"neutralizing" Taiwan in drafting the Treaty of San Francisco of 1951 (the peace treaty with Japan), which excluded the participation of both the ROC and the PRC. Each self-claimed legitimate government of China was excluded from the treaty because the question of China's legitimate government remained unresolved after World War II and the Chinese Civil War, and this was considered an intractable sticking point in otherwise comprehensive and multilaterally beneficial peace negotiations. Japan ceded control of Taiwan in the treaty but did not specify a recipient for Taiwan's sovereignty. This situation has been used by supporters of Taiwan independence to argue for their position that the sovereignty status of Taiwan was undetermined, despite the Japanese having already agreed to return Taiwan to Republic of China through their Instrument of Surrender signed at end of the War. According to the author George H. Kerr, a supporter of Taiwanese independence, in his book Formosa Betrayed, the political status of Taiwan was under the trust of the Allied Powers (against Japan). It would be the responsibility of the United Nations if this could not be resolved in near future as designed in the peace treaty. The ROC Nationalist Government (now based in Taiwan) maintained as its goal the recovery of control of mainland China, and this required a resumption of the military confrontation with the Red Chinese. Truman and his advisors regarded that goal as unrealizable, but regret over losing China to international communism was quite prominent in public opinion at the time, and the Truman Administration was criticized by anticommunists for preventing any attempt by Chiang Kai-shek's forces to liberate mainland China. Truman, a member of the Democratic Party, did not run for reelection in the presidential election of 1952, even though he was eligible to do so. This election was won by the Republican Dwight D. Eisenhower, a General from World War II. On 2 February 1953, the new president lifted the Seventh Fleet's blockade in order to fulfill demands by anticommunists to "unleash Chiang Kai-shek" on mainland China, hence the Kuomintang regime strengthened its Closed Port Policy of the aerial and naval blockade on foreign vessels on Chinese coast and the high seas, whereas the privacy activities intensified in the summer 1953 after Joseph Stalin's death and the Korean Armistice Agreement till summed up to 141 interference incidents as per the Royal Navy escort reports. The CIA briefing on 13