[235] ‘Il faut prévoir que les Anglais peuvent marcher sur Talavera pour faire diversion,’ wrote Napoleon on Jan. 31 to Berthier. But Heudelet had been moved before his caution could reach Madrid. Long before Heudelet approached the Guadiana, Mortier had been compelled, partly by want of supplies, partly by the threatening attitude of La Romana, who began cautiously to turn his flanks, to retire from in front of the walls of Badajoz. He gave back as far as Zafra on the road to the south, and six days after marched for Seville, leaving only a rearguard at Santa Ollala, on the extreme border of Estremadura. Soult required his presence, for, on account of a rising in Granada, and a threatening movement by the Spanish army of Murcia, the French reserves in Andalusia had been moved eastward, and its capital was almost stripped of troops. Hence when the 2nd Corps reached Caçeres on March 8, and appeared in front of Albuquerque on March 14, it found that the 5th Corps had departed, and that it was nearly 100 miles from the nearest friendly post. Heudelet, therefore, having all La Romana’s army in his front, and no orders to execute (since the junction with Mortier had failed), retired to Merida, where Reynier arrived from the north, superseded him, and took command. Here the 2nd Corps remained practically passive for the rest of the spring, keeping open, but with difficulty and at long intervals, the communications between Madrid and Seville, by means of detachments at Truxillo and Almaraz. To a certain extent Reynier kept La Romana’s army in check, but he did not fully discharge even that moderate task, for the Spanish general detached southward two of his divisions, those of Contreras and Ballasteros, to threaten the frontiers of Andalusia and stir up an insurrection in the Condado de Niebla and the other regions west of Seville. Ballasteros surprised the cavalry brigade of Mortier’s corps at Valverde, at midnight on February 19, and scattered it, killing Beauregard, the brigadier. He then advanced to Ronquillo, only twenty miles from Seville, where, on March 25-6, he had an indecisive engagement with one of Gazan’s brigades, after which he retired into the Condado. Mortier, thereupon, came out against him from Seville at the head of a whole division. Unwisely offering battle at Zalamea, on the Rio Tinto, on April 15, Ballasteros was beaten, and retired into the mountains. Thither, after some time, he was pursued by Mortier’s columns, and again defeated at Araçena on May 26. But he rallied his broken force in the Sierra de Araçena, where he remained for long after, a thorn in the side of the Army of Andalusia, always descending for a raid in the plains of Seville when he was left unwatched. Soult was forced to keep a considerable part of the 5th Corps in observation of him--a detachment that he was loth to spare.