KEVIN Rudd warned Hillary Clinton to be prepared to use force against China ''if everything goes wrong'', an explosive new Wikileaks cable has revealed.

Mr Rudd also told Mrs Clinton during a March 24, 2009, meeting in Washington that China was ''paranoid'' about both Taiwan and Tibet and that his ambitious plan for an Asia-Pacific Community was intended to blunt Chinese influence in the region.

It also reveals Mr Rudd offered Australian special forces to fight in Pakistan once an agreement could be made with Islamabad.

The cable details a 75-minute lunch Mr Rudd held as prime minister with Mrs Clinton shortly after she was appointed US Secretary of State in the Obama administration.