Such was the condition of things with the main army when the famous battle of Barosa was fought by a different section of the British army at some distance. An Anglo-Spanish army was attempting to raise the siege of Cadiz. All bade fair for success, as the French had scarcely ten thousand men in their lines, while in the city the Spanish force was more than twenty thousand. On this occasion, Graham acted under the command of La Pena, and eleven thousand allied troops were despatched from Cadiz to Tarifa, to operate against the enemy’s rear at Chiclana; while it was arranged that Zayas, who commanded in the Isle de Leon, should pass his troops over San Petri near the sea, and unite in a combined attack. After much delay, occasioned by tempestuous weather, the troops and artillery were safely assembled at Tarifa on the 27th; and when joined by the 28th regiment and the flank companies of the 9th and 82nd, they numbered about four thousand five hundred effective men. General La Pena arrived the same day with seven thousand Spaniards; and on the next, the united force moved through the passes of the Ronda hills, and halted within four leagues of the French outposts. The commands of the allies were thus distributed--the vanguard to Lardizable, the centre to the Prince of Anglona, the reserve to General Graham, and the cavalry to Colonel Whittingham. Victor, the French commander, though apprised of the activity of the Spaniards, and the march of General Graham, could not correctly ascertain the point upon which their intended operations would be directed; and therefore, with eleven thousand choice troops, he took post in observation between the roads of Conil and Medina. On the 2nd April, the capture of Casa Viejas, increased La Pena’s force by sixteen hundred infantry, and a number of guerilla horse. Until the 5th, he continued his movements, and, after his advanced guard had been roughly handled by a squadron of French dragoons, he halted on the Cerro de Puerco, more generally and gloriously known as the heights of Barosa. Barosa, though not a high hill, rises considerably above the rugged plain it overlooks, and stands four miles inland from the debouchement of the Santi Petri. The plain is bounded on the right by the forest of Chiclana, on the left by cliffs on the sea-beach, and on the centre by a pine wood, beyond which the hill of Bermeja rises.