Following the defeat of the French Republican armies at
Neerwinden, the Allied army under the
Prince of Coburg recovered much of the
Austrian Netherlands and began besieging
Condé-sur-l'Escaut, while the demoralised French army's attempts to relieve the fortress in actions at Saint-Amand and
Raismes were driven back. By mid-May Coburg was reinforced to a strength approaching 90,000, which allowed the Allies to drive the French from an entrenched camp in the
Battle of Famars on 23 May, and lay siege to Valenciennes. Many of the French who had been driven from Famars took refuge in the fortified town of Valenciennes, raising its garrison considerably. Coburg selected the recently arrived Duke of York to lead the siege operations with his own command and 14,000 Austrians, while Austrian General
Joseph de Ferraris was attached to supervise the technical aspects. The British government were surprised by this, the British were inexperienced in heavy siege warfare and lacked equipment, it was even suspected the Austrians had some sinister reasons for choosing York York's Chief of Engineers Colonel
James Moncrief believed that the place could be carried by an assault without the need for a long protracted investment, but Ferraris would hear none of it and insisted on a formal siege of trenches following full procedures. ==The siege==