Erschießungskommando / Spartakisten Krieg in München Bayern.
Note on reverse (below) kindly translated by xiphophilos:
"Zum ewigen Andenken an den Spartakisten Krieg in München Bayern." - As an eternal memento of the Spartacist War in Munich, Bavaria.
The 1918 - 19 German communists' attempt to establish Bavaria as a socialist state was a convoluted and bloody affair. An abridged version of the events as follows:
On Sunday, April 12, 1919, the Communist Party seized power, with Eugen Leviné as their leader. Leviné began to enact communist reforms, which included forming a "Red Army", seizing cash and food supplies, expropriating luxurious apartments and giving them to the homeless and placing factories under the ownership and control of their workers. Leviné also had plans to abolish paper money and reform the education system, but never had time to implement them.
At the suggestion of Vladimir Lenin, Leviné took hostages from among the elite. When his troops refused to execute the hostages, Russian soldiers were sent to do it. On 30 April 1919, eight men, including the well-connected Prince Gustav of Thurn and Taxis, were accused as right-wing spies and executed. The Thule Society's secretary, Countess Hella von Westarp, was also murdered.
Soon after, on 3 May 1919, remaining loyal elements of the German army (called the "White Guards of Capitalism" by the communists), with a force of 9,000, and Freikorps (such as the Freikorps Epp and the Marinebrigade Ehrhardt) with a force of about 30,000 men, entered Munich and defeated the communists after bitter street fighting in which over 1,000 supporters of the government were killed. About 700 men and women were arrested and summarily executed by the victorious Freikorps troops. Leviné was condemned to death for treason, and was shot by a firing squad in Stadelheim Prison.