federal presidential constitutional republic

The United States of America, commonly referred to as the USA, is a federal republic comprising 50 states, a federal district (Washington, D.C.), and several territories. It is located primarily in North America, bordered by Canada to the north, Mexico to the south, the Atlantic Ocean to the east, and the Pacific Ocean to the west. The USA has a diverse population of more than 330 million people, consisting of various ethnicities, religions, and cultural backgrounds. English is the primary language spoken, but there are also many other languages spoken throughout the country. The USA has a mixed-market capitalist economy and is the world's largest economy by nominal GDP and second-largest by purchasing power parity. It has a well-developed infrastructure and is home to many world-class cities such as New York, Los Angeles, Chicago, and San Francisco. The country is known for its cultural contributions to the world, including literature, music, film, and art. It is also home to many famous landmarks and tourist attractions, such as the Statue of Liberty, the Grand Canyon, and Disneyland. The USA is governed by a federal system with a president as the head of state and a bicameral legislature consisting of the Senate and the House of Representatives. The country has a long history of democracy and is known for its strong emphasis on individual rights and freedoms.