In 1684, with the War of the Reunions, an era of French expansion began. Trier was again captured in 1684; all walls and fortresses were destroyed this time. After Trier and its associated electorate were yet again taken during the War of Palatinate Succession in 1688, many cities in the electorate were systematically destroyed in 1689 by the French Army. Nearly all castles were blown up and the only bridge across the Moselle in Trier was burnt. King Louis XIV of France personally issued the order for these acts of destruction. As the French Army retreated in 1698, it left a starving city without walls and only 2,500 inhabitants.