Battle of Fleurus

Background. In May 1794, Jean-Baptiste Jourdan received command of roughly 96,000 men, formed by combining the Army of the Ardennes with portions of the Army of the North and the Army of the Moselle. His task was to consolidate the capture of the north bank of the Sambre, specifically the fortress of Charleroi, which French forces had failed to take three times, suffering defeats at Grandreng, Erquelinnes, and Gosselies.

Allied Plans and Complications. After the French defeat at Lambusart on 16 June, Coburg assumed the Sambre danger had passed and reinforced Count Clerfayt's effort to relieve the siege of Ypres. With the siege lifted, he returned to Tournai and planned a decisive battle on the Sambre, bringing 12,000 Austrians toward Charleroi to join Orange's and Beaulieu's 40,000. Concentrating forces created complications: British and British-paid troops might interpret the eastward departure as abandonment of the Low Countries and withdraw to protect Holland. Coburg needed the Duke of York to guard the Scheldt line, but the British at first refused, suspecting a cover for retreat.

The Battle. The Allies commenced the battle of Fleurus to relieve Charleroi, arriving half a day too late, as the fortress had already fallen. Count Radetzky infiltrated French lines around midnight, reached Charleroi's walls, discovered it captured, but was injured and chased on his return, reaching headquarters only in the afternoon when the battle was underway. The fighting was intense and unrelenting; the French held their line despite morning defeats on both flanks and counterattacked in the afternoon. Allied assaults made no progress beyond a toehold in Lambusart, as the terrain favoured defenders.

Aftermath and Significance. While tactically indecisive, Fleurus was the strategically decisive battle of the French 1794 campaign in the Low Countries. The Austrians gave up contesting the region, and the Allied army broke up as British and Dutch forces withdrew northward to defend the Netherlands. Divided and outnumbered, they could not hold back the French; the Batavian Revolution in Amsterdam on 18 January 1795 extinguished the Dutch Republic, replaced by the pro-French Batavian Republic. The battle marked a turning point, leaving the French ascendant for the rest of the war.