President José de La Mar promulgated a law passed by Congress by which the city of Tacna was given the title of Ciudad Heroica (Heroic City). The administrative divisions before the war against Chile were as follows: During the War of the Pacific against Chile, the tacneños made contributions to the resistance of the state to the advances of the Chilean forces into the province, some giving up their lives in defence of the nation. Chilean administration On 26 May 1880, after the Battle of Alto de la Alianza, the Chilean army occupied the Tacna province. Under the terms of the treaty, Chile was to occupy the provinces of Tacna and Arica for ten years, after which a plebiscite was to be held to determine the region's sovereignty. Tacna remained under Chilean control for 50 years, during which Chilean groups and authorities lead a campaign of Chilenization in an attempt to persuade the local population to abandon their Peruvian past and accept Chilean nationality. However, Peruvian nationalists ensured that the Chilean propaganda failed and the planned plebiscite was never held. Finally, in 1929, the Treaty of Lima was signed in which Chile kept Arica, while Peru regained Tacna whilst receiving a $6 million indemnity and other concessions. From 1890 to 1929, Locumba served as the provisional capital of the area of the department not under Chilean administration. Some of the important persons who lived in Tacna during the Chilean administration was Salvador Allende and his family; they lived in the city for eight years. Allende lived in Tacna sincefrom when he was a baby. He arrived in 1908 and studied in the Tacna School (Liceo de Tacna). Maritime dispute On 26 January 2007, Peru's government issued a protest against Chile’s demarcation of the coastal frontier that the two countries share. Peruvian President Alan García recalled his ambassador to Chile, Hugo Otero, to Lima to consult about the controversy over the maritime boundary the two countries share. According to the Peruvian Foreign Ministry, the Chilean legislatures endorsed a plan regarding the Arica and Parinacota region which did not comply with the established demarcation of the border. They alleged that the proposed Chilean law included an assertion of sovereignty over 19,000 square metres of land in Peru's Department of Tacna. According to the Peruvian Foreign Ministry, Chile had defined a new region "without respecting the Concordia demarcation." The Peruvian government maintained that