The Battle of Paardeberg or Perdeberg ("Horse Mountain") was a major battle during the Second Anglo-Boer War. It was fought near Paardeberg Drift on the banks of the Modder River in the Orange Free State near Kimberley.Lord Methuen advanced up the railway line in November 1899 with the objective of relieving the besieged city of Kimberley (and the town of Mafeking, also under siege).