Battle of La Plata (1816)

Colonel Tolrá, upon arriving with his detachment and learning of the measures taken by the patriot forces, ordered three companies; Cazadores, Grenadiers and the 3rd Company under the command of Captain Juan Francisco Capdevila, to attack from the front to distract the enemy, while he crossed the river with the rest of his troops to surprise them from the rear.^[6]

The battle began at 11 a.m., the outnumbered patriots concentrated their efforts on the defense on the bridge, which allowed Tolrá to find a ford and cross the river, although some of his men drowned in the attempt. Faced with the simultaneous attack from both fronts, the independentists were forced to abandon their fortifications and attempted to escape towards Popayán, crossing enemy lines.

The royalist troops attacking from the front crossed the bamboo bridge and, and launched a bayonet charge, which further disorganized the patriots, causing their dispersal. The battle was intense and bloody and many bodies fell into the river, the fighting was concluded by nightfall.^[7] Some patriots managed to escape the site, for which Tolrá ordered the 4th company to pursue them.^[8]

In the days following the battle, the last patriots who had managed to escape were captured by the company Tolrá had sent in pursuit. Among those captured were President Mejía, Colonel Monsalve, and several other officers.^[9] According to the report given by Colonel Tolrá to General Morillo regarding the action, the Spanish commander estimated that the patriots had suffered around 60 deaths and that 56 prisoners had fallen into his hands. The Spanish also captured a flag and a large quantity of war material consisting of 9 boxes of cartridges, each with 1,000 cartridges; 2 boxes of 4-pound cannon cartridges, and bulk gunpowder; 86 loose packages; 4,000 flints; 119 rifles; 140 bayonets; 4 war drums; 2 iron bars and a tent.^[10][11] The battle marked the annihilation of the Socorro battalion, this being the last unit of the Army of the Union to succumb to the Spanish invasion.^[12]

On July 30, the prisoners were taken to Santafé where their sentences were handed down. President Mejía was executed on September 3, 1816, under the charge of treason by order of General Pablo Morillo and Field Marshal Juan Sámano at the age of 24, while Colonel Monsalve was taken to El Socorro and was executed by firing squad facing backwards along with his brother Juan José on September 3 in the town square by express order of General Morillo.^[12] While the rest of the other prisoners were either pardoned, imprisoned, or were forced to serve in the ranks of the Spanish army.

The defeat marked the end of the United Provinces of New Granada and the return of Spanish rule over New Granada, this period would see hundreds of officials, officers, and sympathizers of the first republic executed or imprisoned by the Spanish during the following year. The royalists managed to eliminate all resistance, except for the few army units that managed to escape to the Casanare plains, whose survival would be decisive for the subsequent development of the war.^[13]