On this day January 19, 1817
An army of over 5,400 soldiers led by General José de San Martín crossed the Andes from Argentina to liberate Chile and then Peru from Spanish rule.
The Crossing of the Andes was one of the most important feats in the Argentine and Chilean wars of independence, in which a combined army of Argentine soldiers and Chilean exiles liberated Chile from Spanish rule, in order to protect their country from possible Spanish incursions.
Setting out in 1817, from Mendoza, Argentina, the goal of the crossing of the Andes, was to enter Chile and attack the Royalist forces (Spanish) by surprise. The ultimate goal was the liberation of Chile from Spanish rule with Argentine forces. Led by Jose de San Martin, the crossing took twenty-one days.