the capital city and chief port of Argentina, in the eastern central part of the country, on the Plata River; population 3,042,600 (est. 2008).
Montevideo is the capital and largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of 201 square kilometres (78 sq mi). The southernmost capital city in the Americas, Montevideo is situated on the southern coast of the country, on the northeastern bank of the Río de la Plata.
The city was established in 1724 by a Spanish soldier, Bruno Mauricio de Zabala, as a strategic move amidst the Spanish-Portuguese dispute over the platine region. It was also under brief British rule in 1807. Montevideo is the seat of the administrative headquarters of Mercosur and ALADI, Latin America’s leading trade blocs, a position that entailed comparisons to the role of Brussels in Europe.