Julian Assange ...

Julian Assange ... "enemy of the state". Photo: AFP

(The Sydney Morning Herald) - THE US military has designated Julian Assange and WikiLeaks as enemies of the United States - the same legal category as the al-Qaeda terrorist network and the Taliban insurgency.

Declassified US Air Force counter-intelligence documents, released under US freedom-of-information laws, reveal that military personnel who contact WikiLeaks or WikiLeaks supporters may be at risk of being charged with "communicating with the enemy", a military crime that carries a maximum sentence of death.

The documents, some originally classified "Secret/NoForn" - not releasable to non-US nationals - record a probe by the air force's Office of Special Investigations into a cyber systems analyst based in Britain who allegedly expressed support for WikiLeaks and attended pro-Assange demonstrations in London.

The counter-intelligence investigation focused on whether the analyst, who had a top-secret security clearance and access to the US military's Secret Internet Protocol Router network, had disclosed classified or sensitive information to WikiLeaks supporters, described as an "anti-US and/or anti-military group".

The suspected offence was "communicating with the enemy, 104-D", an article in the US Uniform Code of Military Justice that prohibits military personnel from "communicating, corresponding or holding intercourse with the enemy".

The analyst's access to classified information was suspended. However, the investigators closed the case without laying charges. The analyst denied leaking information.

Mr Assange remains holed up in Ecuador's embassy in London. He was granted diplomatic asylum on the grounds that if extradited to Sweden to be questioned about sexual assault allegations, he would be at risk of extradition to the US to face espionage or conspiracy charges arising from the leaking of hundreds of thousands of secret US military and diplomatic reports.

US Vice-President Joe Biden labelled Mr Assange a "high-tech terrorist" in December 2010 and US congressional leaders have called for him to be charged with espionage.