Tim Ross, Holly Watt and Christopher Hope
London Telegraph 
Feb 3, 2011
The United States threatened to take military action against China during a secret “star wars” arms race within the past few years, according to leaked documents obtained by The Daily Telegraph.
The two nuclear superpowers both shot down their own satellites using sophisticated missiles in separate show of strength, the files suggest.
The American Government was so incensed by Chinese actions in space that it privately warned Beijing it would face military action if it did not desist.
The Chinese carried out further tests as recently as last year, however, leading to further protests from Hillary Clinton, the US Secretary of State, secret documents show.