"This study reviews the events that have resulted in the fall and revival of the LDP [Liberal Democratic Party] and an assessment of the factors that have contributed to the end of one of the most durable one-party regimes among the industrialized democracies. An analysis of the external and internal developments within Japan in the postwar era and the political parties' subsequent reactions to these changes within and outside the parliament can provide a plausible explanation to the factors that have led to the weakening of LDP dominance and the decline of the 1955 system. It can also serve as a guide to track the continuing realignment of political forces in Japan"--P. 2.