Battle of San Juan and Chorrillos order of battle

Chilean Operations Army

Commander in Chief of the Chilean Army: GLD Manuel Baquedano González (37)
Total strength: 23,179 men

Chief of Staff: GLB Marcos Maturana (48)
General Inspector of the Army: GLB Cornelio Saavedra Rodríguez (6)
Commander of Artillery: Col. Jose Velasquez Borquez (6)
Commander of Cavalry: Lt. Col. 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)

Commodore Patricio Lynch Solo de Zaldívar, Chilean Navy (6)
Chief of Staff: Col. Gregorio Urrutia, Chilean Army (15)
Strength: 9.295 men

1st Infantry Brigade Col. 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 Infantry Regiment (Lt. Col. Silvertre Urizar) (1.184)
- Marine Artillery Regiment (Lt. Col. Vidaurre) (360)
- Melipilla Infantry Battalion (Lt. Col. Vicente Balmaceda) (451)
2nd Infantry Brigade Col. Jose Domingo Amunategui
- 4th Line Infantry Regiment (Col. Luis Solo de Zaldivar)
- "Chacabuco" Infantry Regiment (Col. Domingo de Toro Herrera)
- Coquimbo Infantry Regiment (Lt. Col. Jose Maria 2º Soto)

Col. Emilio Sotomayor Baeza
Strength: 5,970 men

1st Brigade Col. Jose Francisco Gana
- "Buin" 1st Line Infantry Regiment (Lt. Col. Juan Leon Garcia)
- "Esmeralda" Infantry Regiment (Lt Col. Adolfo Holley)
- Chillán Infantry Regiment (Lt. Col. Pedro Guiñez)
2nd Brigade Col. Orozimbo Barbosa
- Lautaro Infantry Regiment (Lt. Col. Eulogio Robles)
- Curicó Infantry Battalion
- Victoria Infantry Battalion

Col. Pedro Lagos
Strength:

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)

Col. Aristides Martínez
Strength:

Supreme Commander in Chief: President Nicolás de Piérola

Gen. Ramón Vargas Machuca

Col. Manuel Iglesias

1st North Division Col. Mariano Noriega
- 1st Peruvian Guards Infantry Battalion
- Cajamarca No.3 Infantry Battalion
- Ayacucho "9th December" 5th Infantry Battalion
2nd North Division Col. Manuel Regino Cano
- Tarma No.7 Infantry Battalion
- 9th Infantry Battalion Callao
- Libres de Trujillo No.11 Infantry Battalion
3rd North Division Col. Pablo Arguedas
- 13th Infantry Battalion "Junin"
- 15th Infantry Battalion Ica
- Libres de Cajamarca No.21 Infantry Battalion

Col. Belisario Suarez

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

Col. Juan Nepomuceno Vargas

3rd Center Division Col. Cesar Canevaro
- 67th Infantry Battalion Piura
- 23 December No.69 Infantry Battalion
- Libertad No.71 Infantry Battalion
5th Center Division Col. Fabian Merino
- 85th Cajamarca Ranger Battalion
- Unión No.87 Infantry Battalion
- 89th Junín Rifle Infantry Battalion
Light Division Col. Manuel C. Bustamante, Peruvian Civil Guard
- A and C Corps, Civil Guard
- D and E Corps, Civil Guard
- B Corps, Civil Guard

1st Center Division Col. Domingo Oyarza
- 61st Lima 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
- 83rd Ayachucho Infantry Battalion

Reyno, Manuel; Gómez, Sergio (1985). Historia del Ejército de Chile, Vol VI. Estado Mayor del Ejército de Chile.
Jorge Ortiz Sotelo (1996). Apuntes sobre la batalla de Miraflores. Municipalidad de Santiago de Surco.