(Adds background on author, details)
By Chris Buckley
BEIJING, March 1 (Reuters) - China should build the world's strongest military and move swiftly to displace the United States as the global "champion", a Chinese PLA officer says in a new book reflecting swelling nationalist ambitions.
The call for China to abandon modesty about its global goals and "sprint to become world number one" comes from a People's Liberation Army (PLA) Senior Colonel, Liu Mingfu, who warns that his nation's ascent will alarm Washington, risking war despite Beijing's hopes for a "peaceful rise".
"China's big goal in the 21st century is to become world number one, the top power," Liu writes in his newly published Chinese-language book, "The China Dream".
"If China in the 21st century cannot become world number one, cannot become the top power, then inevitably it will become a straggler that is cast aside," writes Liu.
His 303-page book stands out for its boldness in a recent chorus of strident Chinese voices demanding a hard shove back against Washington over trade, Tibet, and arms sales to Taiwan, the self-ruled island Beijing claims as its own.
"As long as China seeks to rise to become world number one ... then even if China is even more capitalist than the U.S., the U.S. will still be determined to contain it," he writes.
Rivalry between the two powers is a "competition to be the leading country, a conflict over who rises and falls to dominate the world," says Liu.
"The China Dream" does not represent government policy, which has been far less strident about the nation's goals.
But Liu's book testifies to the homegrown pressures on China's Communist Party leadership to show the country's fast economic growth is translating into greater sway against the West, still mired in an economic slowdown.
Liu is a professor at the elite National Defence University, which trains rising officers, and the appearance of his book underscores that calls for Beijing to take a hard stance against Washington reach beyond nationalist views on the Internet to include voices in the military elite.
"This book represents my personal views, but I think it also reflects a tide of thought," Liu told Reuters in an interview. "We need a military rise as well as an economic rise."
The next marker of how China's leaders are handling these expectations may come later this week, when the government is likely to announce its defence budget for 2010, after a 14.9 percent rise last year on the one in 2008.
Another PLA officer has said this year's defence budget should send a defiant signal to Washington after the Obama administration went ahead in January with long-known plans to sell $6.4 billion worth of arms to Taiwan.
"I think one part of 'public opinion' that the leadership pays attention to is elite opinion, and that includes the PLA," said Alan Romberg, an expert on China and Taiwan at the Henry L. Stimson Center, an institute in Washington D.C.
"I think the authorities are seeking to keep control of the reaction, even as they need to take (it) into account," Romberg said in an emailed response to questions.
Liu's book was officially published in January, but is only now being sold in Beijing bookstores.
LIGHTING A FIRE IN AMERICA'S BACKYARD
In recent months, strains have deepened between Beijing and Washington over trade, Internet controls, U.S. arms sales to Taiwan and President Barack Obama's meeting with Tibet's exiled leader, the Dalai Lama, who China reviles.
China has responded with angry words and a threat to sanction U.S. companies involved in the Taiwan arms sales. But it has not acted on that threat and has allowed a U.S. aircraft carrier to visit Hong Kong.
China's leaders do not want to jeopardise ties with the United States, a key trade partner and still by far the world's biggest economy and military power.
Over the weekend, Chinese Premier Wen Jiabao said he wanted trade friction with the United States to ease. U.S. Deputy Secretary of State James Steinberg is due to visit Beijing this week.
Yet Beijing policy-makers have to tread increasingly carefully to balance rival domestic and foreign demands on how to handle Washington, said Jin Canrong, a professor of international relations at Renmin University in Beijing.
"Chinese society is changing, and you see that in all the domestic views now on what China should do about the United States," said Jin. "If society demands a stronger stance, ignoring that can bring a certain cost."
Liu and other PLA officers say they see little chance of avoiding deepening rivalry with the United States, whether peaceful or warlike.
"I'm very pessimistic about the future," writes another PLA officer, Colonel Dai Xu, in another recently published book that claims China is largely surrounded by hostile or wary countries beholden to the United States.
"I believe that China cannot escape the calamity of war, and this calamity may come in the not-too-distant future, at most in 10 to 20 years," writes Dai.
"If the United States can light a fire in China's backyard, we can also light a fire in their backyard," warns Dai.
Liu writes that China and the United States can manage their rivalry through peaceful economic competition and vying for wider influence in coming decades, when Beijing will emerge as the undoubted global leader.
But as China grows into the world's top economy, it will also need the world's strongest military force to deter the wary United States from challenging China's emerging pre-eminence, Liu argues.
The PLA should be so powerful the United States "would not dare and would not be able to intervene in military conflict in the Taiwan Strait", writes Liu.
"Turn some money bags into bullet holders." (Editing by Benjamin Kang Lim and Jeremy Laurence)