sentences:  Saavedra retired from the army in January 1864 after political pressures from the ministers of President José Joaquín Pérez.The Chincha Islands War between Spain and an alliance between Chile and Peru made the government call Saavedra into the army again in 1866 in order to defend the coast of Araucanía against possible Spanish attacks.Saavedra ordered a fort to be constructed in the coast between Lebu and Imperial River.