Battle of the Seven Years War. A 60,000 strong allied army led by Ferdinand of Brunswick, defending western Germany, faced two French armies, with a combined strength of 100,000 men led by the Duc de Broglie and the Prince de Soubise. The French, who were attempting to capture Lippstadt, were forced to attack Ferdinand, who was defending the line of the Lippe. The French attack fell mostly on the allied left wing, and in particular the mostly British corps commanded by the Marquis of Granby, where the French were held, partly because the two French commanders did not cooperate well, and Soubise failed to support de Broglie's attack. After their defeat at Vellinghausen, the two French generals once again split their forces, and Ferdinand was able to frustrate them for the rest of that years campaigning.