Following North Korea’s third nuclear test, Dr. Andrei Lankov writes that China’s strategic goals for its rogue ally are defined by “three no’s.” Unfortunately for the international community, a nuclear North Korea rests at the bottom of this list.

Following a difficult confirmation process, Chuck Hagel has been sworn in as the 24th U.S. Secretary of Defense. Hagel faces many challenges including the DPRK nuclear threat, the dispute over the Diaoyu/Senkaku islands, and how to navigate the bilateral relationship with China.

During the Cold War, deterrence was a strategy used to dissuade other nations from using nuclear weapons. Now, in order to avoid a cyber arms race, Yang Jian encourages the United States to end its strategy of cyberspace deterrence and institute a paradigm shift embracing global collective security.

The most recent revelations of the activities of the Chinese Army Unit 61398 through the computer firm Mandiant has given the impression that the United States is entering a new phase of cyber conflict with the People’s Republic of China.

Tensions between the United States and China over cyber security appear to be coming to a head. A recent U.S. National Intelligence Estimate singled out China as the country most aggressively engaging in commercial cyber espionage against the U.S. private sector.

The recent allegation that Chinese military was behind hacker attacks” against US websites by certain US firms and media are not only annoying but also laughable, write officers at China's Ministry of National Defense.

Although some Obama advisers have recommended harsh action in response to China’s cyberespionage, China is unlikely to respond as they may hope. The spying will continue and probably intensify regardless of what the United States does.

Adam Segal looks at the evidence from the hacking scandal that has rocked the US media world. He writes that the evidence that the hackers are China-based in all of these cases is suggestive, but not conclusive.

North Korea's third nuclear test is a game changer not only for the United States and Japan, but also for the regime’s last ally, China. The official Chinese reaction to North Korea’s latest provocation was stern: China is “strongly dissatisfied and resolutely opposed” to the test, and it is calling for the resumption of international talks.

While the United Nations Security Council discusses the possibility of even more sanctions against North Korea, Su Xiaohui promotes a new approach to stabilize tensions.