World War I was the first major war where Jews were allowed to serve in the German officer corps. A lot of Jewish line officers and NCOs died in the trenches in France fighting to the last breath for a country, who by the end of the Nazi regime had reduced their number, by exile or murder, from several million to a mere 17,000.
A terrible thought: how many Jews in the Kaiser's army took a bullet for Cpl. Hitler when the latter was a message runner?