The Battle of Lauffeld, variously known as Lafelt, Laffeld, Lawfeld, Lawfeldt, Maastricht, or Val, took place on 2 July 1747, between Tongeren in modern Belgium, and the Dutch city of Maastricht. Part of the War of the Austrian Succession, a French army of 80,000 under Marshal Saxe defeated a Pragmatic army of 120,000, led by the Duke of Cumberland.
Arguably the most talented general of his generation, Saxe conquered much of the Austrian Netherlands between 1744 to 1746 although he failed to achieve decisive victory. In the spring of 1747, Cumberland planned an offensive to retake Antwerp but was forced to fall back when the French threatened to cut him off from his supply base at Maastricht. When the two armies met at Lauffeld, a series of mistakes by Cumberland compromised his position and only counterattacks by the Allied cavalry prevented a serious defeat.
The battle ended Allied hopes of regaining lost ground and Saxe captured Bergen op Zoom in September, then Maastricht in May 1748. However, financing the war had brought France close to bankruptcy and severe food shortages caused by the Royal Navy blockade worsened after defeat at Cape Finisterre in October 1747 left the French unable to defend their merchant shipping. The stalemate resulted in the October 1748 Treaty of Aix-la-Chapelle.