In the Battle of the Bidasoa on 7 October 1813 the Allied army of Arthur Wellesley, Marquess of Wellington wrested a foothold on French soil from Nicolas Soult's French army. The Allied troops overran the French lines behind the Bidassoa River on the coast and along the Pyrenees crest between the Bidasoa and La Rhune (Larrun). The nearest towns to the fighting are Irun on the lower Bidassoa and Bera on the middle Bidasoa. The battle occurred during the Peninsular War, part of the wider Napoleonic Wars.

In the siege of Pamplona, a Spanish force led by Captain General Henry O'Donnell and later Major General Carlos de España blockaded an Imperial French garrison under the command of General of Brigade Louis Pierre Jean Cassan. At first, troops under Arthur Wellesley, Marquess Wellington surrounded the city, but they were soon replaced by Spanish units. In late July 1813, Marshal Nicolas Soult attempted to relieve the city but his operation failed in the Battle of the Pyrenees. Cassan capitulated to the Spanish after the French troops in the city were reduced to starvation. The surrender negotiations were marred by French bluffs to blow up the fortifications and Spanish threats to massacre the garrison, neither of which occurred. Pamplona is located on the Arga River in the province of Navarre in northern Spain. The siege occurred during the Peninsular War, part of the Napoleonic Wars.