The Battle of Kunersdorf was a Russian victory over Frederick the Great on the 12th of August 1759 during the Seven Years War. Frederick was attempting to save Dresden from the advancing Russian army. Having somewhat less than half the troops the Russians had, Frederick decided to make an encircling attack from the flanks, but his plans were ruined by his troops getting lost in the forests and failing to co-ordinate their attacks. He was decisively defeated by the Russians, losing half his army and almost all his artillery. Dresden fell three weeks later. Research Battle of Kunersdorf