United States of America (USA, United States of America) is one of the largest world powers, both in size and in population, GDP, the impact on world politics and many other factors.
United States of America ranks fourth in the world in land area. A large part of the United States (48 States) is located in the Central part of the North American continent is the so - called continental US States. Alaska is situated on a Peninsula in the North-West of North America, Hawaii on Hawaiian Islands in the Pacific ocean. The USA borders on Canada in the North and Mexico to the South. With Russia, the U.S. has a Maritime border in Alaska.