Prussians
... that six Prussians served as generals for the Union army in the American Civil War?
... that six<span id="mwBE4" typeof="mw:Entity"> </span><b id="mwBE8"><a class="mw-redirect" href="./Prussia_in_the_American_Civil_War" id="mwBFA" rel="mw:WikiLink" title="Prussia in the American Civil War">Prussians</a></b> served as generals for the <a class="mw-redirect" href="./Union_army" id="mwBFE" rel="mw:WikiLink" title="Union army">Union army</a> in the <a href="./American_Civil_War" id="mwBFI" rel="mw:WikiLink" title="American Civil War">American Civil War</a>?