Astrakhan Cossack
...that the Astrakhan Cossack army existed from 1737 until 1919 when they were defeated alongside their White Russian allies during the Russian Civil War?
...that the <b id="mwAx0"><a href="./Astrakhan_Cossacks" id="mwAx4" rel="mw:WikiLink" title="Astrakhan Cossacks">Astrakhan Cossack</a></b> army existed from <a href="./1737" id="mwAx8" rel="mw:WikiLink" title="1737">1737</a> until <a href="./1919" id="mwAyA" rel="mw:WikiLink" title="1919">1919</a> when they were defeated alongside their <a href="./White_movement" id="mwAyE" rel="mw:WikiLink" title="White movement">White Russian</a> allies  during the <a href="./Russian_Civil_War" id="mwAyI" rel="mw:WikiLink" title="Russian Civil War">Russian Civil War</a>?