Siege of Aire-sur-la-Lys
Summary
The last important place in Artois, Aire-sur-la-Lys is besieged in autumn 1710. The defense led by the Marquis de Gacé is vigorous: besiegers encounter prolonged resistance, notably during several costly French sorties. Nevertheless, the siege is methodical and progressive. The town is taken after a month of intense fighting. The garrison obtains the honors of war.
Historical context
The fall of Douai, Béthune, and Saint-Venant opened the road to Aire. Its position on the Lys makes it a logistical lock between Flanders and Artois. Its loss concludes a catastrophic year for the defense of northern France.
Tactics
Classical siege: parallel trenches, breaching fire, repeated assaults. The garrison conducts several effective counterattacks, notably against the sappers. Crossfire from the bastions causes heavy losses among the besiegers.
Consequences
France loses quasi-total control of the right bank of the Lys. The enemy threatens Lens and Arras. King Louis XIV orders a reform of defensive strategy for 1711.