United States of America: The United States of America is the world’s third largest country in size and nearly the third largest in terms of population. The United States shares significant land borders with Canada to the north and Mexico to the south as well as limited maritime borders with the Bahamas, Cuba, and Russia.The United States is a highly developed country, accounts for approximately a quarter of global GDP, and is the world’s largest economy by GDP at market exchange rates. By value, the United States is the world’s largest importer and second-largest exporter of goods. Although its population is only 4.2% of the world’s total, it holds 29.4% of the total wealth in the world, the largest share held by any country. Making up more than a third of global military spending, it is the foremost military power in the world and internationally a leading political, cultural, and scientific force.
