Between the Wars, 1920 - 1939
With the end of World War One, many expected to never repeat the mistakes that led to the Great War. But, events, as always, ruined the best laid plans. Dissatisfied with the outcome and resulting treaties of the War, many groups stats began to search for new political arrangements, economic systems, and revolts against the old colonial order that was maintained after World War One.
Weimar Republic - Wikipedia
Germany after World War One was not stable, and is generally referred as the Weimar Republic, the city of its birth.
Music of the 1920sNational Anthem of the Union of Soviet Socialist Republics, adopted in 1944.