USA

The United States of America is a North American nation that is the world's most dominant economic and military power. Likewise, its cultural imprint spans the world, led in large part by its popular culture expressed in music, movies and television. The U.S. ranks No. 1 in power and No. 1 in terms of leadership – two powerful indicators of its global standing. But there is evidence that other nations are nipping at its heels The United States had almost all the attributes of a great power—it stood ahead or nearly ahead of almost all other countries in terms of population, geographic size and location on two oceans, economic resources, and military potential. Foreign policy had to change to meet these new circumstances.