The
Allied occupation ended on 28 April 1952, when the terms of the
Treaty of San Francisco went into effect. By the terms of the treaty, Japan regained its
sovereignty, but lost many of its possessions from before World War II, including
Korea (divided into
South Korea and
North Korea by 1948),
Taiwan (the
Kuomintang led by
Chiang Kai-shek retreated to the island after losing control over mainland China to
Mao Zedong's
CCP in the
Chinese Civil War, leading to the establishment of the
People's Republic of China) and
Sakhalin (regained by the
Soviet Union and now under Russian jurisdiction). It also lost control over a number of small islands in the Pacific which it administered as League of Nations Mandates, such as the
Marianas and the
Marshalls. The new treaty also gave Japan the freedom to engage in international defence blocs. Japan did this on the same day it signed the San Francisco Treaty: the U.S. insisted, and
Prime Minister Shigeru Yoshida agreed, to a treaty that allowed the American military to continue their use of bases in Japan. Even before Japan regained full sovereignty, the government had rehabilitated nearly 80,000 people who had been purged, many of whom returned to their former political and government positions. A debate over limitations on military spending and the sovereignty of the
emperor ensued, contributing to the great reduction in the
Liberal Party's majority in the first post-occupation elections (October 1952). After several reorganizations of the armed forces, in 1954 the
Self-Defense Forces were established under a civilian director.
Cold War realities and the hot
war in nearby Korea also contributed significantly to the United States-influenced economic redevelopment, the containment of the Soviet Union and Communist China, and the support for organized labor in Japan. Continual fragmentation of parties and a succession of minority governments led conservative forces to merge the Liberal Party (Jiyuto) with the Japan Democratic Party (Nihon Minshuto), an offshoot of the earlier Democratic Party, to form the
Liberal Democratic Party (Jiyu-Minshuto; LDP) in November 1955. This party continuously held power from 1955 through 1993, when it was replaced by a new minority government. LDP leadership was drawn from the elite who had seen Japan through the defeat and occupation; it attracted former
bureaucrats, local politicians, businessmen, journalists, other professionals, farmers, and university graduates. In October 1955, socialist groups reunited under the
Japan Socialist Party, which emerged as the second most powerful political force. It was followed closely in popularity by the
Kōmeitō, founded in 1964 as the political arm of the
Soka Gakkai (Value Creation Society), a lay former organization of the
Buddhist sect Nichiren Shoshu. The Komeito emphasized traditional Japanese beliefs and attracted urban laborers, former rural residents, and many women. Like the Japan Socialist Party, it favoured the gradual modification and dissolution of the
Japan-United States Mutual Security Assistance Pact. . By the late 1970s, the Komeito and the Democratic Socialist Party had come to accept the Treaty of Mutual Cooperation and Security, and the Democratic Socialist Party even came to support a small defense buildup. The Japan Socialist Party, too, was forced to abandon its once strict antimilitary stance. The United States kept up pressure on Japan to increase its defense spending above 1% of its GNP, engendering much debate in the Diet, with most opposition coming not from minority parties or public opinion but from budget-conscious officials in the
Ministry of Finance. Prime Minister
Kakuei Tanaka was forced to resign in 1974 because of his alleged connection to financial scandals and, in the face of charges of involvement in the Lockheed bribery scandal, he was arrested and jailed briefly in 1976. The fractious politics of the LDP hindered consensus in the Diet in the late 1970s. The sudden death of Prime Minister
Masayoshi Ohira just before the June 1980 elections, however, brought out a sympathy vote for the party and gave the new prime minister,
Zenko Suzuki, a working majority. Suzuki was soon swept up in a
controversy over the publication of a textbook that appeared to many as a whitewash of Japanese aggression in World War II. This incident, and serious fiscal problems, caused the Suzuki cabinet, composed of numerous LDP factions, to fall.
Yasuhiro Nakasone, a conservative backed by the still-powerful Tanaka and Suzuki factions who once served as director general of the
Defense Agency, became prime minister in November 1982. In November 1984, Nakasone was chosen for a second term as LDP president. His cabinet received an unusually high rating, a 50% favorable response in polling during his first term, while opposition parties reached a new low in popular support. As he moved into his second term, Nakasone thus held a strong position in the Diet and the nation. Despite being found guilty of bribery in 1983, Tanaka in the early-to-mid-1980s remained a power behind the scenes through his control of the party's informal apparatus, and he continued as an influential adviser to the more internationally minded Nakasone. The end of Nakasone's tenure as prime minister in October 1987 (his second two-year term had been extended for one year) was a momentous point in modern Japanese history. Just fifteen months before Nakasone's retirement, the LDP unexpectedly had won its largest majority ever in the House of Representatives by securing 304 out of the 512 seats. The government was faced with growing crises. Land prices were rapidly increasing due to the
Japanese asset price bubble, inflation increased at the highest rate since 1975, unemployment reached a record high at 3.2%, bankruptcies were rife, and there was political rancor over LDP-proposed tax reform. In the summer of 1987, economic indicators showed signs of recovery, but on October 20, 1987, the same day Nakasone officially named his successor,
Noboru Takeshita, the
Tokyo Stock Market crashed. Japan's economy and its political system had reached a watershed in their postwar development that would continue to play out into the 1990s. == Economy ==