sentences:  President Manuel Bulnes's opposition called for a punitive expedition and Mapuches prepared for a confrontation with the Chilean Army.Bulnes however dismissed the calls for a punitive expedition in view of its irrelevance to the eventual conquest of Araucanía.When Chilean liberals began the 1851 Revolution Mapuche chief Mañil joined the rebel army and fought with José María de la Cruz's army against the troops of Manuel Bulnes at the Battle of Loncomilla.