Paraguay River 98% of the country's inhabitants. As such the river is considered perhaps the key geographical feature of the country with which it shares its name. Some after flowing through the middle of Paraguay, at the confluence with the Pilcomayo River and passing the Paraguayan capital city, Asunción, the river forms the border with Argentina, flowing generally south-southwesterly for another before it reaches its end, joining with the Paraná River. The Paraguay River is the second major river of the Rio de la Plata Basin, after the Paraná River. The Paraguay's drainage basin, about , covers a vast area that includes
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