A Chinese naval frigate steams through the swell as it approaches Sydney Harbour …
Chinese President Hu Jintao, seen here in April 2011, has urged the country's navy …
Chinese President Hu Jintao Tuesday urged the navy to prepare formilitary combat amid growing regional tensions over maritime disputes and a US campaign to assert itself as a Pacific power.
The navy should "accelerate its transformation and modernisation in a sturdy way, and make extended preparations for military combat in order to make greater contributions to safeguard national security," he said.
Addressing the powerful Central Military Commission, Hu said: "Our work must closely encircle the main theme of national defence and military building."
His remarks, which were posted on a statement on a government website, come amid growing US and regional concerns over China's naval ambitions, particularly in the South China Sea.
China claims all of the maritime area, as does Taiwan, while four Southeast Asian countries declare ownership of parts of it, with Vietnam and the Philippines accusing Chinese forces of increasing aggression there.
In a translation of Hu's comments, the official Xinhua news agency quoted the president as saying China's navy should "make extended preparations for warfare."
But the Pentagon on Tuesday downplayed Hu's speech, saying that Beijing had the right to develop its military, although it should do so transparently.
"They have a right to develop military capabilities and to plan, just as we do," said Pentagon spokesman George Little, but he added "we have repeatedly called for transparency from the Chinese and that's part of the relationship we're continuing to build with the Chinese military."
"Nobody's looking for a scrap here," insisted another spokesman Admiral John Kirby. "Certainly we wouldn't begrudge any other nation the opportunity, the right to develop naval forces to be ready.
"Our naval forces are ready and they'll stay ready."
US undersecretary of defence Michelle Flournoy is due to meet in Beijing with her Chinese counterparts on Wednesday for military-to-military talks.
Chinese Premier Wen Jiabao last month warned against interference by "external forces" in regional territorial disputes including in the South China Sea, a strategic and resource-rich area where several nations have overlapping claims.
And China said late last month it would conduct naval exercises in the Pacific Ocean, after Obama, who has dubbed himself America's first Pacific president, said the US would deploy up to 2,500 Marines to Australia.
China's People's Liberation Army, the largest military in the world, is primarily a land force, but its navy is playing an increasingly important role as Beijing grows more assertive about its territorial claims.
Earlier this year, the Pentagon warned that Beijing was increasingly focused on its naval power and had invested in high-tech weaponry that would extend its reach in the Pacific and beyond.
China's first aircraft carrier began its second sea trial last week after undergoing refurbishments and testing, the government said.
The 300-metre (990-foot) ship, a refitted former Soviet carrier, underwent five days of trials in August that sparked international concern about China's widening naval reach.
Beijing only confirmed this year that it was revamping the old Soviet ship and has repeatedly insisted that the carrier poses no threat to its neighbours and will be used mainly for training and research purposes.
But the August sea trials were met with concern from regional powers including Japan and the United States, which called on Beijing to explain why it needs an aircraft carrier.
China, which publicly announced around 50 separate naval exercises in the seas off its coast over the past two years -- usually after the event -- says its military is only focused on defending the country's territory.