Independence of Paraguay Plata with a capital city in Buenos Aires. It included parts of modern-day Argentina, Bolivia, Uruguay and Rio Grande do Sul. In 1782 a system of municipalities was introduced. The municipality of Paraguay had only one town with city status – Asuncion. During the era of the Napoleonic Peninsula War, when mainland Spain was allied with and later occupied by the French, The British Empire attempted to take control of the Viceroyalty by launching the River Plate invasions, occupying Buenos Aires and neighbouring parts of the Río de la Plata in 1806 and 1807. Paraguayan units led by Governor Velasco
Paraguay–Spain relations part of the International Brigades for the Republican faction and they fought in the Battle of the Ebro. Paraguay maintained diplomatic relations throughout General Francisco Franco’s administration. Relations between Paraguay and Spain strengthened under the Presidency of Alfredo Stroessner. In July 1973, President Stroessner paid an official visit to Spain and met with General Franco. In October 1990, Spanish King Juan Carlos I paid his first official visit to Paraguay. The King would visit Paraguay again in 2006 and once more in 2011 to attend the Ibero-American Summit being held in the Paraguayan capital. In June 2015, Paraguayan President Horacio