News of the Liberation of Armenia reached the German Reich shortly after the Russians kicked the Turks out of the region. Celebrations were had all over Armenia, where the Russian, Austro-Hungarian, and limited number of Germans who had engaged in the fighting were fully celebrated as heroes of war by the locals.
As for the German Reich, it was seen as a major win for Christianity, even if the Armenians were generally of a different denomination. The liberation of Christian lands from Muslim occupation was always a cause for celebration by the devout.
And because of this, the Kaiser and his family were also having a feast to honor the sacrifices of those who had fallen in pursuit of this victory for Christendom. By now the Prussian Princess had been married off to some duke or another within the German Reich.