Nadershah's only defeat

The Battle of Samarra was the only defeat of Nader Shah Afshar

  The Battle of Samarra was a key conflict between two great Iranian and Ottoman generals, Nader Afshari and Topal Osman Pasha, which led to the abandonment of the siege of Baghdad by Nader's troops and the survival of the power of the High Council of Istanbul in Iraq. . The bloody battle of Samarra with the loss of 50,000 Iranian forces…