The First Colombo-Central American War.
With the outbreak of hostilities in February 10 1860 following a general mobilization of the army a day before, the Federal Republic of Central America was at war for the very first time. The paper strength of the Federal Army stood at 82,000 men of which 40,000 still had to be mobilized. Mobilization was expected to be complete by May 6. The 42,000 currently available troops would be expected to break the Colombian Army.
The Central American General Staff had come up with a plan. General Pacheco, a formal aide to Carrera had devised a plan to destroy the Colombian Army and occupy the narrow isthmus of Panama. It was called the Pacheco Plan:
The 30,000 infantry divisions would form an army corps. Colonel Aznar would command it and lead it to capture Penome and then move on to secure Panama. Meanwhile, General Pacheco would destroy the isolated enemy division at Santiago De Varagua.
The plan worked well for Colonel Aznar. The miniscule resistance he faced was easily swept aside by his 30,000 strong army corps. The battle of Penome proved his steadfastness and determination:
By the battle of Panama, Colonel Aznar had been promoted to General Aznar and was theoretically equal in rank to General Pacheco:
For General Pacheco, things were more complicated, the small 1000 man division had inflicted heavy losses on his dragoon division. Even with the assistance of one of the mobilized reserve divisions he was still ultimately defeated:
General Pacheco was disgraced, although organizationally his Pacheco Plan worked as planned, his many tactical defeats led to Pacheco being labelled as "inept" by his contemporary peers. He spent the rest of the war on rear area guard duty.
The war proceeded quickly after the defeat of the Colombian Army at Panama. By February 16 1861, with the Colombian Army shattered and the whole country, with the sole exception of Santiago de Varagua occupied. Colombia sued for peace: