The Battle of Rocoux was a French

Early Modern France

Kingdom of France is the early modern period of French history from the end of the 15th century to the end of the 18th century...

 victory over an allied Austrian

Habsburg Monarchy

The Habsburg Monarchy covered the territories ruled by the junior Austrian branch of the House of Habsburg , and then by the successor House of Habsburg-Lorraine , between 1526 and 1867/1918. The Imperial capital was Vienna, except from 1583 to 1611, when it was moved to Prague...

, British

Kingdom of Great Britain

The former Kingdom of Great Britain, sometimes described as the 'United Kingdom of Great Britain', That the Two Kingdoms of Scotland and England, shall upon the 1st May next ensuing the date hereof, and forever after, be United into One Kingdom by the Name of GREAT BRITAIN. was a sovereign...

, Hanoveran

Electorate of Hanover

The Electorate of Brunswick-Lüneburg was the ninth Electorate of the Holy Roman Empire of the German Nation...

 and Dutch

Dutch Republic

The Dutch Republic — officially known as the Republic of the Seven United Netherlands , the Republic of the United Netherlands, or the Republic of the Seven United Provinces — was a republic in Europe existing from 1581 to 1795, preceding the Batavian Republic and ultimately...

 army outside Liège during War of the Austrian Succession

War of the Austrian Succession

The War of the Austrian Succession  – including King George's War in North America, the Anglo-Spanish War of Jenkins' Ear, and two of the three Silesian wars – involved most of the powers of Europe over the question of Maria Theresa's succession to the realms of the House of Habsburg.The...

.

Preliminary maneuvers

The French army was commanded by Marshall Saxe and the army of the Pragmatic Allies by Prince Charles of Lorraine of Austria and the British General Sir John Ligonier. Saxe had nearly completed his campaign to take Flanders

Flanders

Flanders is the community of the Flemings but also one of the institutions in Belgium, and a geographical region located in parts of present-day Belgium, France and the Netherlands. "Flanders" can also refer to the northern part of Belgium that contains Brussels, Bruges, Ghent and Antwerp...

 and was threatening to invade Holland. The allies took up a position next to Liège with the Dutch under Waldeck on the left from Liège to Rocoux, the British and Hanoverians in the center and the Austrians on the right almost to the River Jaar

The battle

The French main attack went against the Dutch portion on the left of the allied line between Liege and Rocoux. Heavily outnumbering the Dutch, the French defeated them on the third assault. The Dutch were forced to withdraw behind the British and Hannoverian lines. In the face of a general French advance the allied line began to give way. The Austrians on the allied right were not engaged and made no attempt to take the initiative and advance against the French left flank. Lingonier's cavalry and some British, Hanoverian and Dutch infantry formed a rear guard that held off the French as the army withdrew. The French were victorious, although the allied army escaped from destruction. The French captured Liège.

Aftermath

This was the second great victory of three for Saxe, after Fontenoy

Battle of Fontenoy

The Battle of Fontenoy, 11 May 1745, was a major engagement of the War of the Austrian Succession, fought between the forces of the Pragmatic Allies – comprising mainly Dutch, British, and Hanoverian troops under the nominal command of the Duke of Cumberland – and a French army under Maurice de...

 and prior to Lauffeld

Battle of Lauffeld

The Battle of Lauffeld, also known as the Battle of Lafelt or Battle of Maastricht, also Battle of Val, took place on 2 July 1747, during the French invasion of the Netherlands. It was part of the War of the Austrian Succession...

. The French were victorious, immediately capturing Liège and breaking Austrian control over the Austrian Netherlands for the remainder of the war.