Chile, officially the Republic of Chile, is a country in the western part of South America. It occupies a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of 756,096 square kilometres (291,930 sq mi), with a population of 17.5 million as of 2017. Chile is the southernmost country in the world, the closest to Antarctica, and borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about 1,250,000 square kilometres (480,000 sq mi) of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish.