German Jews
... that of an estimated 100,000 German Jews who served in the German Army in World War I, 12,000 were killed in action?
... that of an estimated 100,000 <b id="mwBgM"><a href="./German_Jewish_military_personnel_of_World_War_I" id="mwBgQ" rel="mw:WikiLink" title="German Jewish military personnel of World War I">German Jews</a></b> who served in the <a class="mw-redirect" href="./German_Army_(German_Empire)" id="mwBgU" rel="mw:WikiLink" title="German Army (German Empire)">German Army</a> in <a href="./World_War_I" id="mwBgY" rel="mw:WikiLink" title="World War I">World War I</a>, 12,000 were killed in action?