German President Christian Wulff, his wife Bettina (L) President of the Bundesrat, the German upper house of parliament, Jens Boehrnsen (2nd L) and his partner Birgit Ruest (R) arrive for celebrations marking the country's 20th anniversary of reunification, in Bremen October 3, 2010. After four decades of division into Soviet-controlled communist German Democratic Republic (GDR) in the east and the Federal Republic of Germany in the west, Germany was officially reunited on October 3, 1990. REUTERS/Christian Charisius (GERMANY - Tags: POLITICS ANNIVERSARY)