Spanish General Joaquín Blake y Joyes Blake advanced from the Murcian border on 2 November 1810 with 8,000 infantry and 1,000 cavalry. Cúllar was reached on the 3rd and the small Spanish army kept going. Blake committed a serious blunder by allowing his troops to become badly spread out. His advance guard of cavalry and 3,000 infantry bivouacked near Baza on the evening of the 3rd. His 2,000-man rear guard camped near Cúllar while his remaining division was situated between the two towns.[11] Defending Baza was Rey with a brigade from Sebastiani's 1st Division. Rey's force counted one battalion of the 32nd Line Infantry Regiment and three battalions of the 58th Line.[12]
But help was on the way. Receiving news of the Spanish invasion, Édouard Milhaud marched his cavalry to Baza. He reaching there early on 4 November 1810 and united his horsemen with Rey's 2,000 French infantry.[11] Milhaud brought 1,300 cavalrymen, including the 5th, 12th, 16th, 20th, and 21st Dragoon Regiments and the Polish lancers of the Legion of the Vistula. The French also had two horse artillery batteries. Blake had 12 guns in addition to the 1st and 2nd Divisions of the Army of the Center.[12] Arranging his troopers on both sides of the main highway, Milhaud ordered a cavalry charge. The French horsemen plowed into Blake's horsemen and scattered them. As the Spanish cavalry fled, they rode through their own infantry formations. When the French dragoons and Polish lancers galloped toward the disordered Spanish infantry, the men took to their heels. The Imperial French horsemen completely smashed Blake's vanguard, hacking down scores of soldiers and capturing hundreds of others. When the French came upon Blake's second division deployed in difficult terrain, they stopped their charge. Blake quickly ordered a retreat.[11] In the Battle of Baza the French lost 200 killed and wounded. The cavalry won the battle and Rey's infantry suffered negligible losses. Blake's army lost 500 killed and wounded and 1,000 soldiers captured.[12]
In February 1812, Francisco Ballesteros with 2,000 Spanish infantry and 300 cavalry attempted to seize the port of Málaga. On the 16th the Spanish force bumped into Jean-Pierre Maransin with 2,000 French infantry and 400 cavalry at the village of Cártama. Ballesteros claimed to have killed Maransin and cut down 1,200 of his men. In fact, Maransin was wounded and his troops suffered about 150 casualties. The Spanish force retreated when Rey appeared with 2,500 foot and 200 horse and aimed an attack at Ballesteros' flank.[13]
In 1814, he commanded a brigade in Eloi Charlemagne Taupin’s division at the battle of Toulouse in 1814, first in the defence of Saint-Cyprien, the suburb of Toulouse on the left bank of the river Garonne, and then in the defence of Mont Calvinet. He survived the battle, and served both the new government and Napoleon’s during the Hundred Days. He remained on the reserve list at his home in rue Foulimou, Puylaurens.[14]