George W. Bush recently signed a document that effectively extends Pax Americana to outer space. The document, called National Space Policy, underlines the strategic importance of having access to space. It stated that the national security of the US "is critically dependent upon space capabilities, and this dependence will grow." Hence, the US will "preserve its rights, capabilities, and freedom of action in space... and deny, if necessary, adversaries the use of space capabilities hostile to US national interests."
Klingons, you have been warned.
The document can be downloaded here.