This is the order of battle

Order of battle

In modern use, the order of battle is the identification, command structure, strength, and disposition of personnel, equipment, and units of an armed force participating in field operations. Various abbreviations are in use, including OOB, O/B, or OB, while ORBAT remains the most common in the...

 for the Battle of San Juan and Chorrillos in 1881 during the War of the Pacific

War of the Pacific

The War of the Pacific took place in western South America from 1879 through 1883. Chile fought against Bolivia and Peru. Despite cooperation among the three nations in the war against Spain, disputes soon arose over the mineral-rich Peruvian provinces of Tarapaca, Tacna, and Arica, and the...

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Chilean Operations Army

The Chilean army was under the command of General in Chief Manuel Baquedano González with general Jose Velasquez Borquez as his Chief of Staff. The overall strength of the army is 23,179 men of all arms.

• Commander in chief of the Chilean Army GLD Manuel Baquedano González (37)

• Chief of Staff GLB Marcos Maturana (48)

• General Inspector of Army GLB Cornelio Saavedra (6)

• Commander of Artillery COL José Velásquez Bórquez (6)

• Commander of Cavalry LCL Emeterio Letelier (6)

• Sanitary Service Superintendent Dr. Ramón Allende Padín (241)
  • 1° Ambulance
  • 2° Ambulance
  • 3° Ambulance

• Logistic and Transport Services COL Francisco Bascuñán (140)

I Division

Total strength: 9.295 men.
CIC Commodore Patricio Lynch Solo de Zaldívar (6)
COS Colonel Gregorio Urrutia (15)

• 1st Brigade Colonel Juan Martinez (3)
  • 2nd Line Infantry Regiment (Lt. Col. Estanislao del Canto)(980)
  • Atacama Infantry Regiment (Col. Juan Martinez)(1.174)
  • Colchagua Infantry Regiment (Lt. Col. Manuel Soffia) (854)
  • Talca 16th Line Infantry Regiment (Lt. Col. Silvertre Urizar)(1.184)
  • Artilleria de Marina Infantry Regiment
  • Melipilla Infantry Battalion (Lt. Col. Vicente Balmaceda) (451)

• 2nd Brigade Col. Jose Domingo Amunategui
  • 4th Line Infantry Regiment (Col. Luis Solo de Zaldivar)
  • "Chacabuco" 6th Line Infantry Regiment (Col. Domingo de Toro Herrera)
  • Coquimbo Infantry Regiment (Lt. Col. Jose Maria 2º Soto)

II Division

Strength: 5,970 men. Col. Emilio Sotomayor Baeza

• 1st Brigade Col. Jose Francisco Gana
  • "Buin" 1st Line Infantry Regiment (Lt. Col. Juan Leon Garcia)
  • "Esmeralda" 7th Line Infantry Regiment (Lt Col. Adolfo Holley)
  • Chillán Infantry Regiment (Lt. Col. Pedro Guiñez)

• 2nd Brigade Col. Orozimbo Barbosa
  • Lautaro 22nd Line Infantry Regiment
  • Curicó Infantry Battalion
  • Victoria Infantry Battalion

III Division

Strength: . Col. Pedro Lagos

• 1st Brigade Col. Martiniano Urriola
  • Aconcagua Infantry Regiment
  • Navales Infantry Battalion

• 2nd Brigade Col. Francisco Barceló
  • Concepción Infantry Regiment
  • "Santiago" Infantry Regiment (Col. Demófilo Fuenzalida)
  • Bulnes Infantry Battalion
  • Valdivia Infantry Battalion
  • Caupolican Infantry Battalion (Col. José M. del Canto)

Reserve

Strength: . Col. Aristides Martínez

• 3rd Line Infantry Regiment (Col. Ricardo Castro)
• Valparaíso Infantry Regiment
• Zapadores Infantry Regiment

Peruvian Army

The Peruvian Army was commanded by the Supreme Chief Nicolás de Piérola

Nicolás de Piérola

H.E. Don Jose Nicolás Baltasar Fernández de Piérola y Villena was a prominent Peruvian politician, the Finance Minister and twice President of the Republic of Peru .-Early years:Nicolás de Piérola was born and educated in the southern Peruvian city of Arequipa...

and the Chief of the Major Staff was the general Pedro Silva. The army was divided on North Army, commanded by general Ramón Vargas Machuca, and the Center Army, commanded by colonel Juan Nepomuceno Vargas. The divisions of every army were grouped in Corps.

1st North Division

Col. Mariano Noriega

Guardia Peruana No.1 Infantry Battalion

Cajamarca No.3 Infantry Battalion

Ayacucho "9th December" No.5 Infantry Battalion

2nd North Division

Col. Manuel Regino Cano

Tarma No.7 Infantry Battalion

Callao No.9 Infantry Battalion

Libres de Trujillo No.11 Infantry Battalion

3rd North Division

Col. Pablo Arguedas

Junín No.13 Infantry Battalion

Ica No.15 Infantry Battalion

Libres de Cajamarca No.21 Infantry Battalion

4th North Division

Col. Buenaventura Aguirre

Huanuco No.17 Infantry Battalion

Paucarpata No.19 Infantry Battalion

Jauja No.23 Infantry Battalion

5th North Division

Col. Benigno Cano

Ancash No.25 Infantry Battalion

Concepción No.27 Infantry Battalion

Zepita or Zuavos No.29 Infantry Battalion

3rd Center Division

Col. Cesar Canevaro

Piura No.67 Infantry Battalion

23 December No.69 Infantry Battalion

Libertad No.71 Infantry Battalion

5th Center Division

Col. Fabian Merino

Cazadores de Cajamarca No.85 Infantry Battalion

Unión No.87 Infantry Battalion

Cazadores de Junín No.89 Infantry Battalion

Volante Division

Col. Manuel C. Bustamante

A and C Corps, Civil Guard

D and E Corps, Civil Guard

B Corps, Civil Guard

1st Center Division

Col. Domingo Oyarza

Lima No.61 Infantry Battalion

Canta No.63 Infantry Battalion

28 July No.65 Infantry Battalion

2nd Center Division

Col. Manuel Pereyra

Pichincha No.73 Infantry Battalion

Piérola No.75 Infantry Battalion

La Mar No.77 Infantry Battalion

4th Center Division

Col. Lorenzo Iglesias

Arica No.79 Infantry Battalion

Manco Cápac No.81 Infantry Battalion

Ayacucho No.83 Infantry Battalion