The Battle of Bornos on 5 November 1811 saw a Spanish force led by Francisco Ballesteros attack an Imperial French column under Jean-Baptiste Pierre de Semellé. The action was part of a larger operation in which the French tried to trap Ballesteros but failed. Instead, the Spanish general lashed out at one of the French columns. The French escaped disaster when they fought their way out, but a French-allied Spanish battalion either surrendered or switched sides. Bornos is about 40 miles (64 km) northeast of Jerez de la Frontera on Route 342. The battle occurred during the Peninsular War, part of the Napoleonic Wars.