The United States of America (USA) is an English-speaking North American country. It is 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 is comprised of 50 states and has several territories. Companies expanding into the USA must comply with both federal laws and state laws, depending on where they do business and have employees. The USA has the world’s largest economy by nominal GDP. Top sectors include wholesale and retail trade, healthcare, financial services, manufacturing and the automotive industry. It also is a top country in technological expertise.