Jewish women attempted to create an exterior presence of German while maintaining the Jewish lifestyle inside their homes. During the history of the German Empire, there were various divisions within the German Jewish community over its future; in religious terms, Orthodox Jews sought to keep to Jewish religious tradition, while liberal Jews sought to "modernise" their communities by shifting from liturgical traditions to organ music and German-language prayers. The Jewish population grew from 512,000 in 1871 to 615,000 in 1910, including 79,000 recent immigrants from Russia, just under one percent of the total. About 15,000 Jews converted to Christianity between 1871 and 1909. The typical attitude of German liberals towards Jews was that they were in Germany to stay and were capable of being assimilated; anthropologist and politician Rudolf Virchow summarised this position, saying "The Jews are simply here. You cannot strike them dead." This position, however, did not tolerate cultural differences between Jews and non-Jews, advocating instead eliminating this difference. World War I A higher percentage of German Jews fought in World War I than of any other ethnic, religious or political minority in Germany; around 12,000 died in the fighting. Many German Jews supported the war out of patriotism; like many Germans, they viewed Germany's actions as defensive in nature and even left-liberal Jews believed Germany was responding to the actions of other countries, particularly Russia. For many Jews it was never a question as to whether or not they would stand behind Germany, it was simply a given that they would. The fact that the enemy was Russia also gave an additional reason for German Jews to support the war; Tsarist Russia was regarded as the oppressor in the eyes of German Jews for its pogroms and for many German Jews, the war against Russia would become a sort of holy war. While there was partially a desire for vengeance, for many Jews ensuring Russia's Jewish population was saved from a life of servitude was equally important – one German-Jewish publication stated "We are fighting to protect our holy fatherland, to rescue European culture and to liberate our brothers in the east." War fervour was as common amongst Jewish communities as it was amongst ethnic Germans ones. The main Jewish organisation in Germany, the Central Association of German Citizens of the Jewish Faith, declared unconditional support for the war and when August 5 was declared by the