US Military: Budget, Personnel and Requirements

The United States Armed Forces are the military forces of the United States. They consist of the Army, Navy, Marine Corps, Air Force, and Coast Guard.

What is the budget for the whole military?

How do they get the money for the expenses?

Does a big militarybudget make a nation a superpower?

How many soldiers do they have?

Any special standards you have to live up to, when joining the army?

Sources:

http://en.wikipedia.org/wiki/United_States_Armed_Forces#Budget

http://www.popularmilitary.com/military-requirements.htm

http://en.wikipedia.org/wiki/United_States_Armed_Forces#Personnel