Christian Democratic Union (East Germany) (1990: Two Germanies)

The Christian Democratic Union (German: Christlich-Demokratische Union Deutschlands, CDU) is an East German christian democratic political party founded in 1945. Until 1989, it acted as a bloc party for the then ruling Socialist Unity Party of Germany.

The CDU rise to become a major party in the aftermath of the fall of the Berlin Wall, and the democratization of East Germany. It, along with its western sister party, was, and still is, a main force for German unification.

While being one of the main parties, along with the Social Democratic Party, through the 1990s, it began to lose popularity after the turn of the new millennium. It have since 2000 lost more and more support to conservative parties in support of an East German nation state. Especially after the 2008 financial crisis and the 2015 European migration crisis.

The party's ideology is built on Protestant Christianity, but in the recent decade, its christian and socially conservative ideology have been placed in the back for more mainstream and liberal conservative values. But while the party have shifted to become more liberal conservative, it managed to redevelop the Protestant Christian faith in East Germany, and the country are more Christian today than in 1990.

Since 2002, the party have been led by Angela Merkel. Some have guessed that her tenure as leader might soon be over.