This photograph was taken by an American YMCA secretary of the mosque Kaiser Wilhelm II built for Muslim prisoners at Zossen-Wuensdorf. The Kaiser had long held the title of the friend of the Muslims and the propaganda camp at Zossen served three purposes. The facility became a recruitment center for captured Muslims to volunteer for service with the Sultan's armies in the Near East. The camp and the mosque demonstrated Germany's concern for the subjugated Islamic people in the Allied Powers' empires. In addition, the prison camp showed the German people that the Entente Powers had to rely on colonial troops to support their war effort.