Flag of Germany
With the formation of the short-lived Weimar Republic after World War I, the tricolour was adopted as the national flag of Germany. Sixteen years later following World War II, the tricolour was again designated as the flag of both West and East Germany divided states in 1949. The two flags were identical until 1959, when the East German flag was augmented with the coat of arms of East Germany. Since reunification on 3 October 1990, the black-red-gold tricolour has become the flag of a reunified Federal Republic of Germany.
Flag of Germany
After the Austro-Prussian War in 1866, the Prussian-dominated North German Confederation adopted a tricolour of black-white-red as its flag. This flag later became the flag of the German Empire, formed following the unification of Germany under the Prussian king who became emperor in 1871, and was used until 1918 with the end of the First World War. Black, white, and red were reintroduced as the German national colours with the establishment of Nazi Germany under Adolf Hitler in 1933, replacing German republican colours with imperial colours until the end of World War II.