History: Old Germany

Tensions between East and West Germany were reduced in the early 1970s by Chancellor Willy Brandt's Ostpolitik. In summer 1989, Hungary decided to dismantle the Iron Curtain and open the borders, causing the emigration of thousands of East Germans to West Germany via Hungary. This had devastating effects on the GDR, where regular mass demonstrations received increasing support. The East German authorities unexpectedly eased the border restrictions, allowing East German citizens to travel to the West; originally intended to help retain East Germany as a state, the opening of the border actually led to an acceleration of the Wende reform process. This culminated in the Two Plus Four Treaty a year later on 12 September 1990, under which the four occupying powers renounced their rights under the Instrument of Surrender, and Germany regained full sovereignty. This permitted German reunification on 3 October 1990, with the accession of the five re-established states of the former GDR (new states or "neue Länder").
• Berlin Republic and the EU
Based on the Berlin/Bonn Act, adopted on 10 March 1994, Berlin once again became the capital of the reunified Germany, while Bonn obtained the unique status of a Bundesstadt (federal city) retaining some federal ministries. The relocation of the government was completed in 1999. Since reunification, Germany has taken a more active role in the European Union and NATO. Germany sent a peacekeeping force to secure stability in the Balkans and sent a force of German troops to Afghanistan as part of a NATO effort to provide security in that country after the ousting of the Taliban. These deployments were controversial since, after the war, Germany was bound by domestic law only to deploy troops for defence roles. In 2005, Angela Merkel became the first female Chancellor of Germany as the leader of a grand coalition.