sentences:  When the Chilean Civil War of 1829 broke out between the conservative centralists and the liberal federalists, President Francisco Antonio Pinto was forced twice to leave the post of president to Francisco Ramón Vicuña.First, from July 14 to October 19, when Vicuña assumed as "President Delegate", and then finally when he resigned on November 2 and Vicuña assumed power.On December 7, 1829 the conservative troops under General José Joaquín Prieto, commander of the southern army, approached Santiago from the South.