Battle of Rodeo del Medio

Battle of Rodeo del Medio
Part of Argentine Civil Wars
Date 24 September 1841 Location Rodeo del Medio, center of Mendoza Province, Argentina Result Decisive victory for the Federalists
Belligerents
Federalists	Unitarians
Commanders and leaders
Ángel Pacheco	Gregorio Aráoz de Lamadrid
Strength
Total: 2.000[1]-3.000[2] Cavalry: 1.200[3]-1.500[1]y Infantry: 1.600[4]-1.800[5] Cannons: 10[3]-13[4]	Total: 1,150[4]-1.600[2] Cavalry: 800[6]-1.200[3] Infantry: 400[4] Cannons: 8[4]-10[3]
Casualties and losses
Dead: 18 Wounded: 30[3]	Dead & wounded: 400 Prisoners: 300[3]

The Battle of Rodeo del Medio, fought in Mendoza Province, Argentina on 24 September 1841, was a battle between the Federalist army of Ángel Pacheco and the Unitarian army of Gregorio Aráoz de Lamadrid during the Argentine Civil Wars. It gave victory to the Federalists that would last for a decade.

Background

In 1840 the Northern Coalition had formed an alliance of almost all the northern provinces against the governor of Buenos Aires Province, Juan Manuel de Rosas, and his allies. General Juan Lavalle had spent more than a year fighting Rosas in Entre Ríos and Corrientes, when he had invaded Buenos Aires Province. But he failed in the invasion, retreating to Córdoba Province, where he was defeated at the Battle of Quebracho Herrado.

Lavalle joined forces with Gregorio Aráoz de Lamadrid, and together they retreated to Tucumán Province. From there, Lamadrid marched towards the Cuyo provinces to open a new war front, thinking José Félix Aldao only had 800-1000 troops from Mendoza at the time, as Lavalle believed.^[7][8] Lavalle resisted in Tucuman with 1,500 militiamen.^[9] Yet, at that time reinforcements under Manuel Oribe began arriving adding up to 9,000 troops,^[10] but only 6,000 ended up part of the final push as the rest remained defending the Cuyo region.^[11]

Lamadrid's vanguard led by Mariano Acha had 900^[12] to 1,000 soldiers and two cannons.^{[13][lower-alpha 1]} Acha faced the Federalist armies of José Félix Aldao and Nazario Benavídez, governors of the provinces of Mendoza and San Juan, in the epic Battle of Angaco, one of the bloodiest of the Argentine civil wars. After Acha had won, he occupied the city of San Juan, but two days later was defeated by Benavídez in the Battle of La Chacarilla, and was shot by order of Aldao. Lamadrid reoccupied San Juan with 1,500 troops,^{[12][lower-alpha 2]} and from there went to Mendoza, entering the city on 3 September 1841, where he was elected governor.

Development

Three weeks later general Ángel Pacheco came to Mendoza accompanied by Aldao, with 2,000 men, 1,500 horses and corresponding artillery.^[1] Lamadrid went out to meet him in Rodeo del Medio, near the city, on the morning of 24 September. The Federalists had 3,000 men and the Unitarians only 1,600. The armies were separated by a flooded area that could only be passed by a bridge. From the beginning, Lamadrid failed to prevent Pacheco from seizing the bridge. His left wing, led by Ángel Vicente Peñaloza, was prevented from moving by a counter-order. When he finally did move, he was quickly repelled by the infantry. The defeat of the Unitarians was evident from the start, and soon all were fleeing to the mountains.

It was a very bloody battle, with hundreds of deaths on each side, followed by a terrible persecution of the vanquished, led by the "monk" Aldao, causing many hundreds of additional deaths. Aldao ordered 1,000 men to follow up to Catamarca to the north, while the rest remained in La Rioja to prevent an attempt by Lavalle to advance to Cuyo.^[10]

Aftermath

The defeated crossed the Andes, long before the thaw would allow a safe crossing, and more than a hundred men died. It is said that a few of the losers hid in a village near Mendoza, then called Coquimbito. The losers did not yet know, but five days before, General Lavalle had been defeated in the Battle of Famaillá in Tucumán, and would be dead within days from an accident in San Salvador de Jujuy. Pacheco ordered Aldao to pursus Lavalle north with 1,500 men,^[13] and subsequently Oribe provided the troops of Mariano Maza in support.^[13] Aldao's troops totaled over 2,700 soldiers with two howitzers directed by Maza, Nazario Benavídez, Pablo Lucero and Pablo Alemán.^[15]

These two battles were the end of the Northern Coalition, and guaranteed Rosas almost unchallenged rule over the country for another ten years, until the Battle of Caseros in 1852.

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