The Colombian Civil War began on May 8, 1860, and lasted until November 1862. It was an internal conflict between the newly formed conservative Granadine Confederation and a more liberal rebel force from the newly seceded region of Cauca, composed of dissatisfied politicians commanded by General Tomás Cipriano de Mosquera, its former president. The Granadine Confederation, created a few years earlier in 1858 by Mariano Ospina Rodríguez, was defeated in the capital Bogotá, with Mosquera deposing the newly elected president Bartolomé Calvo on July 18, 1861. Forming a provisional government, with himself as president, Mosquera continued to pursue the conservative forces until their final defeat in 1862. The resulting formation of the new United States of Colombia would have significant cultur