Chilean Army Armored Cavalry Day
Chilean Army Armored Cavalry Day is held on April 5. This event in the first decade of the month April is annual. 
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With a ceremony in all the military garrisons of the country, the Chilean Army commemorates a new anniversary of the Armored Cavalry, an event instituted in honor of the Battle of Maipú, fought on April 5, 1818.
The battle of Maipú was a decisive armed confrontation in the context of the Chilean War of Independence. It took place on April 5, 1818 in the area known as Cerrillos del Maipo, west of the city of Santiago, where the patriot forces of the United Liberating Army of Chile - formed by troops from the River Plate (from present-day Argentina) and Chile - under the command of General José de San Martín, confronted the Royal Army of Chile of the Spanish Empire under the command of General Mariano Osorio.
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