|Battle of Ocaña|
|Part of the Peninsular War|
|Commanders and leaders|
|Juan Carlos de Aréizaga|
|24,000 Infantry, 5,000 Cavalry||45,000 Infantry, 7,000 Cavalry|
|Casualties and losses|
|2,000 dead or wounded||
4,000 dead or wounded,|
The Battle of Ocaña (or Ocana) was fought on 19 November 1809 between French forces under Marshal Nicolas Jean de Dieu Soult, Duke of Dalmatia and King Joseph Bonaparte and the Spanish army under Juan Carlos de Aréizaga, which suffered its greatest single defeat in the Peninsular War. General Juan Carlos de Aréizaga's Spanish army of 51,000 lost nearly 19,000 killed, wounded, prisoners and deserters, mostly due to the French use of their cavalry. The strategic consequences were also devastating, as it destroyed the only force capable of defending southern Spain; the area was overrun over the winter in the Andalusia campaign.
The Spanish campaign in the autumn of 1809 called for their armies to lunge at Madrid from both north and south. They called for assistance from Arthur Wellesley, Viscount Wellington, but after experiencing a lack of cooperation from the Spanish during the Talavera campaign the British general refused. The French were nearly surprised by the southern thrust. By 9 November, the southern army was within 35 miles of Madrid with only 7,000 French troops blocking them. Then Aréizaga lost his nerve and halted for three days. He then pressed on toward Madrid but ran into two French divisions and pulled back. Several days of fruitless countermarching found the thoroughly alerted French concentrated and moving to intercept the Spanish army.
- 1st Division: Luis Roberto de Lacy (7,700)
- 9 battalions of Burgos, Alcala, 1/Espana, 1/Loxa, 1/Seville, Provincial of Cordova, Prov. of Chinchilla.
- 2nd Division: Gaspar de Vigodet (7,100)
- 9 bns. of Corona, Military Orders, Ronda, Alcazar, Ciudad Real, 1/Guadix.
- 3rd Division: Pedro Agustín Girón (5,200)
- 8 bns. of 1/Guards, 2/Guards, 2/Cordova, Gailen, Prov. of Jaen, Prov. of Toledo.
- 4th Division: F. Castejon (6,400)
- 8 bns. of 1/Malaga, 5/Seville, 2/Loxa, Bujalance, Xeres, 3/Cordova, Velez Malaga Cazadores.
- 5th Division: N. Zerain 5th Division (5,900)
- 7 bns. of Barbastro Cazadores, 2/Espana, 2/Seville, 2/Madrid, Provincial of Granada, 3/Walloon Guards.
- 6th Division: N. Jacome (7,600)
- 9 bns. of Badajoz, Jaen, Alpujarras, 4/Seville, Prov. of Malaga, Prov. of Ecija, Estremadura Tiradores.
- 7th Division: Francisco Copons (5,100)
- 6 bns. of Murcia, Real Marina, Africa, Reyna Regts.
- Vanguard: José Pascual de Zayas y Chacón (6,000)
- 7 bns. Cantabria, Valencia Volunteers, 2/Majorca, Prov. of Plasencia, Prov. Grenadiers, Espana Vols.
- Manuel Alberto Freire de Andrade y Armijo, Spanish cavalry (5,800)
- 1st Division: Juan Bernuy
- Rey, Infante, Almanza, Estremadura Carabineers and Lancers, Madrid Vols.
- 2nd Division: Jose Rivas
- Pavia, 1st and 2nd Estremadura Hussars, Toledo Cazadores.
- 3rd Division: Miguel March
- Montesa, Reyna, Santiago, Principe, Cordova, Alcantara.
- 4th Division: V. Osorio
- Farnesio, Lusitania, Espana, Granada Cazadores, Fernanda VII Grenadiers.
King Joseph led the French army in name only. Actual command over the 24,000 infantry, 5,000 cavalry, 1,500 artillerists and 50 cannon was exercised by Marshal Nicolas Soult. Two army corps, three cavalry divisions and the Central Reserve formed core of the army.
- IV Corps Horace Sébastiani
- Division: Jean Leval
- 2 battalions each of Dutch brigade, 2nd Nassau, Baden, Hesse-Darmstadt Erbprinz Regts., 1 bn. Frankfurt.
- Division: François Werlé
- 2 bns. each of 4th, 7th and 9th Poles.
- Five artillery batteries.
- 3rd Dutch Hussar, Polish Vistula Lancer Regts.
- V Corps Marshal Édouard Adolphe Casimir Joseph Mortier
- Division: Jean Baptiste Girard
- 3 bns. each of 17th Light, 40th, 64th, 88th Line. 4 bns. 34th Line.
- Division: Honoré Théodore Maxime Gazan de la Peyrière
- 3 bns. each of 21st and 28th Light, 100th and 103rd Line.
- Five artillery batteries.
- Cavalry and Central Reserve
- Division: Édouard Jean Baptiste Milhaud (1,800)
- 5th, 12th, 16th, 20th, 21st Dragoon Regiments.
- Division: Antoine Paris d'Illins † (1,000)
- 10th and 26th Chasseur, Westphalian Light Horse Regts.
- Division: Charles Victor Woirgard (Beauregard) (1,500)
- 10th Hussar, 21st Chasseur, 13th and 22nd Dragoon Regts.
- Royal Guard cavalry: (700)
- King's Spanish Chasseur, 27th Chasseur Regts.
- Central Reserve: Jean-Joseph, Marquis Dessolles (7,000)
On 18 November, one of the largest cavalry actions of the Peninsular War took place. Three of Freire's divisions, 4,000 horsemen, attempted to clear a route of retreat for the Spanish army. The French deployed with Paris's light cavalry in the front line and Milhaud's dragoons in the second line. Paris charged, broke the Spanish first line, and was checked when Freire brought up his reserves. At this juncture, Milhaud's dragoons attacked and drove the Spanish cavalry from the field. The French lost less than 100 men, while Spanish losses were in the hundreds, with 80 captured.
William Napier writes of the cavalry action before the battle: "The Spaniards came on at a trot, and Sebastiani directed Paris, with a regiment of light cavalry and the Polish lancers, to turn and fall upon the right flank of the approaching squadrons, which being executed with great vigor, especially by the Poles, caused considerable confusion, with the Spanish general endeavored to remedy by closing to the assailed flank."
West of Ocaña town, Aréizaga placed José Pascual de Zayas y Chacón's Vanguard and Rivas's cavalry. From Ocaña to the east, the Spanish commander aligned his center and right. The right flank, which hung in air, was held by Freire's remaining three cavalry divisions. From there to Ocaña, Luis Roberto de Lacy, Castejon, Pedro Agustín Girón and Vigodet held the front line. Their battalions were arranged in a double line. In reserve behind Castejon stood Jacome's men, Zerain supported Giron and Copons backed up Vigodet.
The Royal Guard and one brigade of Dessolles stood north of Ocaña, facing across a deep ravine. The next unit to the east was Louis Rey's brigade of Dessolles. Gazan and Girard of the V Corps, Leval and Werlé of IV Corps, and the cavalry completed the line to the east. Soult massed 30 cannons near Dessolles and the V Corps' positions.
On 19 November, the massed battery pounded the Spanish center as Leval attacked Castejon and Werlé went in against Lacy's division. At first the Spanish swung their line back. Then, as the IV Corps halted to wait for artillery to be brought up, the two Spanish divisions surged forward into musket range and opened fire. The Dutch, Germans and Poles began to edge rearward. Soult ordered up Girard's division to support the wavering IV Corps battalions.
While this was going on, Milhaud's dragoons, supported by Woirgard and Paris, moved rapidly toward the vulnerable Spanish right flank. Screened by olive groves, they suddenly appeared in front of Freire's command. The French charged and soon routed the Spanish horsemen. Milhaud, Paris and Woirgard neatly wheeled their squadrons and tore into the unprotected flank of Lacy's infantry. Soult sent the French line forward. The massed battery savaged the Spanish line with renewed fury.
Faced by the threat of infantry pressing their front while cavalry slashed into their flank, the Spanish divisions collapsed one after another and bolted for the rear. At this crisis, Dessolles and the Royal Guard dashed across the ravine and burst into Ocaña, severing the Spanish left from their disintegrating center and right. As the Spanish army streamed away to the south, only Zayas's division remained intact to cover the retreat. Soult's cavalry pressed the pursuit and broke Zayas later in the day.
The French captured 14,000 Spaniards, 50 cannon, 30 flags and the entire baggage train. Another 4,000 were killed and wounded. French losses were 2,000 killed and wounded. Paris was killed and Girard wounded. This catastrophe temporarily laid Spain open to French domination. The northern Spanish army was beaten a week later at the Battle of Alba de Tormes. The way was open for the French conquest of Andalusia.
- Napier, p.249.
- Napier gives 1,700, p.250.
- Napier gives 5,000, p. 250.
- Gates, p. 203. Napier gives 26,000, p. 250.
- Napier, p.250.
- Glover, p 115
- Chandler, p 319; Napier, p.249, gives 45,000 infantry, 7,000 cavalry.
- Smith, p 335
- Zimmermann, p 25
- Zimmermann, p 22
- Napier, Vol II, pp. 248-249.
- Zimmermann, p 22-23
- Chandler, David (1979). Dictionary of the Napoleonic Wars. New York: Macmillan. ISBN 0-02-523670-9.
- Gates, David (2001). The Spanish Ulcer: A History of the Peninsular War. Cambridge, MA: Da Capo Press. ISBN 0-306-81083-2.
- Glover, Michael. The Peninsular War 1807-1814. London: Penguin, 2001. ISBN 0-14-139041-7
- Napier, William. History of the war in the Peninsula and the south of France, from the year 1807 to the year 1814 (1873) New York : D. & J. Sadlier. 
- Smith, Digby. The Napoleonic Wars Data Book. London: Greenhill, 1993. ISBN 1-85367-276-9
- Zimmermann, Dick. "The Battle of Ocana," Wargamer's Digest magazine. v. 6, no. 1, Nov. 1979.
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