In 1812, after Wellington's great victory at Salamanca, Soult was obliged to evacuate Andalusia. In the subsequent Siege of Burgos, he was able to drive Wellington's Anglo-allied Army back to Salamanca. There, the Duke of Dalmatia, as Soult was now known, failed to attack Wellington despite superiority in numbers, and the British Army retired to the Portuguese frontier. Soon after, he was recalled from Spain at the request of Joseph Bonaparte (who had been installed by his brother as King of Spain) with whom, as with the other marshals, he had always disagreed.