Russian troops are defeated by forces of the <a href="https://en.wikipedia.org/wiki/Blue_Horde" id="mwTQ" rel="mw:WikiLink" title="Blue Horde">Blue Horde</a> <a href="https://en.wikipedia.org/wiki/Khan_(title)" id="mwTg" rel="mw:WikiLink" title="Khan (title)">Khan</a> Arapsha in the <a href="https://en.wikipedia.org/wiki/Battle_on_Pyana_River" id="mwTw" rel="mw:WikiLink" title="Battle on Pyana River">Battle on Pyana River</a>.