United States of America (The Great Brazilian Empire)

The United States of America (USA), commonly known as the United States (U.S. or US) or America, is a country composed of 44 states, a federal district, and various possessions. At 9.8 million square kilometers (3.8 million sq mi), the United States are the world's third largest country by total area and slightly smaller than Europe. With a population of over 327 million people, the U.S. are the third most populous country. Its capital is Washington, District of Columbia, and the largest city by population is New York. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.

The United States are the world's oldest surviving federation. It is a federal constitutional monarchy, and a representative democracy, "in which majority rule is tempered by minority rights protected by law". The United States are 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 are 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. hold 33% of the total wealth in the world, the largest share of global wealth concentrated in a single country. The United States rank among the highest nations in several measures of socioeconomic performance, including human development, per capita GDP, and productivity per person, while experiencing a substantial amount of income and wealth inequality. The United States are the foremost military power in the world, making up a third of global military spending, and are a leading political, cultural, and scientific force internationally.