Why did the Social Democratic Party of Germany remain out of national power from 1982 to 1998?

The Social Democratic Party of Germany (SPD) remained out of national power from 1982 to 1998 primarily due to internal divisions and the loss of its governing coalition partner.1

By 1982, after 16 years in government, the party faced significant internal conflict regarding military and environmental policies. Specifically, the majority of party activists opposed the support of then-Chancellor Helmut Schmidt for the deployment of new NATO nuclear missiles in Germany. This instability led the SPD's coalition partner, the Free Democratic Party (FDP), to desert the alliance. On October 1, 1982, the FDP joined the Christian Democratic Union (CDU) and the Christian Social Union (CSU) to pass a vote of no confidence against Schmidt, effectively installing Helmut Kohl as chancellor.12

Following this loss, the SPD suffered four successive federal election defeats. During this period, the party also struggled to define its position on the complex and momentous issue of German reunification, approaching the process much more warily than the governing coalition. The SPD did not return to power until 1998, when it won the federal election under the leadership of Gerhard Schröder.12