China’s seizure of underwater US drone and implications

China has returned the U.S. underwater drone (“unmanned underwater vehicle” or UUV) that it seized in the South China Sea last week. Plenty has been said about the illegality of China’s seizure, such as Julian Ku’s analysis here and that of James Kraska and Pete Pedrozo here. The PRC’s feeble and vague attempt to justify its action legally and the immediate move to return the drone certainly reflect its awareness of its poor legal position.

Politically China is using this incident to make the broader point of seeking to halt U.S. surveillance closer to China in what is plainly China’s Exclusive Economic Zone (EEZ), whether or not the PRC’s minority legal position prohibiting EEZ surveillance is acknowledged. The UUV incident is undoubtedly an effort to remind us of PRC objections to what is really “close in” surveillance.

Obviously, the attitude of the Trump administration will be crucial in determining whether the U.S. and China are headed toward military conflict. The U.S. government should devise plans for a more vigorous effort to negotiate detailed understandings about UUV and other surveillance activities. The PRC is likely to continue its resistance to such efforts unless it decides to follow Russia’s example by belatedly acceding to the majority rule permitting EEZ surveillance. Such a change in principle is unlikely in the foreseeable future because of the immediate importance to the PRC of insulating from American scrutiny the movements of its submarines in the South China Sea and because the tides there seem to be moving in China’s favor at the moment.

There is also the broader and even more dangerous problem America faces of continuing to protect Taiwan’s security as tensions mount in the Taiwan Strait. The Taiwan and South China Sea issues are related since they both involve the major question of the extent of the U.S. government’s continuing involvement in East Asia. Will there be any possibility of serious negotiations with Beijing on these matters in the near term? First, the U.S. government will have to prepare a strategy, one that will have the backing of a divided American people long tired of foreign wars but aware of East Asia’s importance to our security, of our accomplishments in the post-WW II era and of our values.