The Battle of Maipo
Royalist forces advanced on Santaigo and San Martin deployed to stop them. The Royalists formed up on a ridge, but with their left flank seperated from the main body. San Martin attacked this flank, and isolated it, securing his right flank. He then attacked the Royalists in the centre, and was initially repulsed, but a Royalist advance was met by effective artillery fire, and also driven back. San Martin committed his reserve, and the Royalists retreated, some making a stand at a nearby farm. With this battle, the independence of Chile was assured.
Republicans
Commander: General de San Martin
'Las Heras' Division (Colonel Las Heras)
11th Infantry Battalion (Argentinian)
Cazadores de Coquimbo (Chilean)
Battalion 'Infantes de la Patria' (Chilean)
4 Squadrons of Horse Grenadiers
8 Field Pieces
'Alvarado' Division (Colonel Alvarado)
2nd Infantry Battalion (Chilean)
8th Infantry Battalion (Argentinian)
'Cazadores de los Andes' (Argentinian)
4 Squadrons 'Cazadores a Cabello de los Andes'
9 Field Pieces
Reserve Division (Colonel de la Quintana)
1st Infantry Battalion (Chilean)
3rd Infantry Battalion (Argentinian)
7th Infantry Battalion (Argentinian)
2 Squadrons Escort Cavalry
4 Field Pieces
Total: 5,000 men with 21 guns
Royalists
Commander: General Osorio
1st Brigade (Colonel Ordonez)
Battalion 'Conception'
Battalion 'Infante Don Carlos'
1 Company. Sappers
Squadron ' Lances de Rey'
Squadron 'Arequipa Dragoons'
4 guns
2nd Brigade (Colonel Morla)
Battalion 'Arequipa'
Battalion 'Burgos'
'Chillan' Horse
2 Squadron 'Frontier Dragoons'
4 guns
3rd Brigade (Colonel de Rivera)
Amalgamated battalion (Grenadier and Cazadores Companies from Battalions 'Burgos', 'Conception', Infante' and 'Arequipa')
4 guns
Total: 5,000 men with 12 guns