This color painting of the mosque at Zossen-Wunsdorf shows the elaborate colors used to decorate the building. Allied Muslim prisoners stand in front of the mosque in the prison compound. Kaiser Wilhelm II paid for the construction of the mosque to show his support of Islam and to recruit troops for his Turkish ally.
Allah and the Occident: How Islam Came to Germany
By Ursula Spuler-Stegemann[1]
The history of Islam in Germany goes back as far as the 8th century. From the reign of Charlemagne, to Goethe's literature, to the Turkish guest workers who arrived in the 1950s and 60s and made a home here, the Muslim religion has been a part of German culture for hundreds of years.
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See also: FIRST WORLD WAR CENTRAL POWER POW CAMPS