Crossing
On the morning of January 19, 1817, San Martin and his army set out from their base camp El Plumerillo and began their journey across the Andes Mountain range. San Martin crossed with 4,000 men, only to end up losing 1/3 of them. The number of auxiliaries reached 1,200.
For the crossing, San Martin split his army into two divisions: The main division, which traveled through the pass of Los Patos, was led by San Martin, Miguel Estanislao Soler and Bernardo O'Higgins. The secondary troop, which traveled through the more southern Uspallata, was led by Juan Gregorio de Las Heras. [8]
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José de San Martín is the national hero of Argentina, Chile and Peru, and along with Simón Bolívar, the most important Libertador of the Spanish American Wars of Independence. For this reason, he is paid homage and depicted in several cultural works of those countries, and even internationally. He led the Campaign across the Andes from Argentina to Chile which has been studied around the world for its complexity.
Army of the Andes 
Spanish Royalists 
José de San Martín 
Bernardo O'Higgins 
