U.S. Alarmed by Harsh Tone of China’s Military

In truth, little in the American actions is new. Mr. Obama’s predecessors also hosted the Dalai Lama. American arms sales to Taiwan were mandated by Congress in 1979, and have occurred regularly since then. American warships regularly ply the waters off China’s coast and practice with South Korean ships.

But Chinese military leaders seem less inclined to tolerate such old practices now that they have the resources and the confidence to say no.

“Why do you sell arms to Taiwan? We don’t sell arms to Hawaii,” said Col. Liu Mingfu, a China National Defense University professor and author of “The China Dream,” a nationalistic call to succeed the United States as the world’s leading power.

That official military relations are resuming despite the sharp language from Chinese Army officials is most likely a function of international diplomacy. President Hu Jintao is scheduled to visit Washington soon, and American experts had predicted that China would resume military ties as part of an effort to smooth over rough spots before the state visit.

Some experts see increased contact as critical. A leading Chinese expert on international security, Zhu Feng of Peking University, says that the Chinese military’s hostility toward the United States is not new, just more open. And that, he says, is not only the result of China’s new assertiveness, but its military’s inexperience on the world stage.

“Chinese officers’ international exposure remains very limited,” Mr. Zhu said. “Over time, things will improve very, very significantly. Unfortunately, right now they are less skillful.”

Greater international exposure is precisely what American officials would like to see. Americans hope renewed cooperation will lead to more exchanges of young officers and joint exercises.

“It’s time for both militaries to reconsider their tactics and strategy to boost their friendship,” Mr. Zhu said. “The P.L.A. is increasing its exposure internationally. So what sort of new rule of law can we figure out to fit the P.L.A. to such new exposure? It’s a challenge not just for China, but also for the U.S.”