Less than a month after the September 11 terrorist attacks on the United States ... This map is the most comprehensive depiction in civilian circles of U.S. military and government antiterrorist ...

NASA scientists rediscovered an abandoned U.S. nuclear base that lies entombed beneath at least 100 feet of ice.

The United States has hundreds of military bases around the world, and that didn't happen all at once. Here's the story ...

These costs have heightened debate over whether the United States needs so many bases abroad: What effect do they have around the world ... little previous U.S. military presence.