is the united states a nation or country
The United States is the world's oldest surviving federation. The federal republic is a representative democracy, "in which majority rule is tempered by minority rights protected by law". The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States (OAS), and other international organizations. The United States is a highly developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for approximately a quarter of global GDP. The U.S. economy is largely post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U.S. holds 33% of the total wealth in the world, the largest share of global wealth concentrated in a single country. The United States ranks among the highest nations in several measures of socioeconomic performance, including average wage, human development, per capita GDP, and productivity per person. The United States is the foremost military power in the world, making up a third of global military spending, and is a leading political, cultural, and scientific force internationally.