nuclear-news

The US and China re-engage on arms control. What may come next

Bulletin, By Daryl G. Kimball | November 15, 2023

For more than six decades, the United States has been worried about China’s regional influence, military activities—and its nuclear potential. For instance, in 1958, US officials considered using nuclear weapons to thwart Chinese artillery strikes on islands controlled by Taiwan, according to a document leaked by Daniel Ellsberg in 2021. Now, as then, a nuclear conflict between the United States and China would be devastating for both sides and the world.

The United States has a decades-long experience of nuclear arms control and strategic stability talks with the Soviet Union, and later Russia. However, there has not been a sustained bilateral dialogue between Washington and Beijing on how to reduce the risk of conflict, nuclear escalation, and nuclear arms control and disarmament. Until recently, China had rebuffed US overtures for bilateral talks on nuclear risk reduction and arms control, and on other security issues.

Adding to the tensions, China has embarked since the early 2000s on a major buildup of its relatively smaller nuclear arsenal and has resisted calls for a global halt on the production of fissile material for nuclear weapons. In response, some current and former national security insiders, as well as many in Congress, suggest that the US arsenal “should be supplemented” to add more capability and flexibility to counter two “near-peer” nuclear adversaries. In other words, the potential for an unconstrained, three-way arms race is growing.

But things started to change on November 6 with the meeting in Washington between US Assistant Secretary of State for the Bureau of Arms Control, Verification and Compliance Mallory Stewart and China’s Ministry of Foreign Affairs Director-General of Arms Control Sun Xiaobo.

A modest yet important breakthrough. The US-Chinese discussion on arms control—the first of its kind since 2018—was described by the US side as a “candid and in-depth discussion on issues related to arms control and nonproliferation.” According to the State Department’s readout of the meeting, “the United States highlighted the need to promote stability, help avert an unconstrained arms race, and manage competition so that it does not veer into conflict.” The Chinese Foreign Ministry’s readout also said the “[t]he two sides had an in-depth, candid and constructive exchange of views” on nuclear weapons matters, as well as an exchange on “regular arms control.”

Several participants told me that the meeting was “wide-ranging” and “positive in tone,” but that it did not involve much substantive exchange of views on the issues, which is not surprising. Tangible progress will require time and sustained give-and-take from both sides.

The next step, ideally, will be for Presidents Joe Biden and Xi Jinping, who are set to meet this week, to direct their teams toward concrete nuclear risk reduction and arms control measures that enhance mutual security.

More nuclear capabilities imply more responsibilities.……………………………………………….

China’s arsenal is not only growing (it had less than 200 nuclear warheads in 2000), but it is also diversifying and modernizing. It is now well-documented that China has started to deploy new solid-fueled missiles that can be launched more quickly than its older liquid-fueled missiles. …………………………………………………………………………..

Of course, China’s nuclear arsenal is still modest by comparison to the US and Russian arsenals, each of which are about nine times larger than China’s. But China’s nuclear modernization efforts could have significant strategic implications that make it even more important for the “Big Three” (the United States, Russia, and China) to pursue meaningful progress on nuclear arms control to avoid a destabilizing and dangerous nuclear arms race.

Toward a more serious, sustained dialogue. In response to China’s nuclear buildup, US officials—Republicans and Democrats alike—have prioritized engagement with China in talks to identify measures to reduce nuclear risks and prevent destabilizing and costly strategic weapons competition………………………….

Sullivan’s June 2 address provides some important clues about the types of issues the US side likely raised in the arms control talks. Sullivan suggested that the United States and China, along with the other NPT nuclear-armed states, could engage in new nuclear arms control and risk reduction efforts such as establishing more robust crisis communications channels and “formalizing a missile launch notification regime” for all five permanent members of the UN Security Council—the United States, Russia, China, the United Kingdom, and France. “It’s a small step that would help reduce the risk of misperception and miscalculation in times of crisis,” Sullivan added.

These suggestions don’t happen in a vacuum: The United States and Russia have a ballistic missile launch notification agreement already in place, and Russia and China have their own bilateral agreement too.

In his remarks, Sullivan also called for talks on “maintaining a ‘human-in-the-loop’ for command, control, and employment of nuclear weapons” to reduce the risk of miscalculation in a crisis. This would require that the US and China—and other nuclear-armed states—agree to pursue technical discussions designed to reach common understandings on how the use of artificial intelligence, particularly high-risk, cutting-edge deep learning models, can be banned or at least limited so the use of nuclear weapons is effectively kept under human control. This proposal seems to have reached the highest level with Presidents Biden and Xi reportedly discussing limits on the employment of artificial intelligence in the control and deployment of nuclear weapons.

In future meetings, US and Chinese diplomats should go one step further and set out a process for formulating a joint understanding that cyberwarfare capabilities will not be used to try to interfere with other states’ nuclear command and control systems, which could also severely alter decision-making in a crisis……………………………………………………..

From talks to concrete actions. Further down the road, an even more ambitious approach that might be considered in the multilateral, nuclear-five setting would be for Washington and Moscow to propose that China, France, and the United Kingdom freeze the size of their nuclear stockpiles so long as the United States and Russia maintain the current limits on their strategic arsenals—even after New START expires—and make good faith efforts to negotiate deeper verifiable reductions in their stockpiles…………………………………………………………………

With US-Russian relations at rock bottom, the Kremlin still wedging its war on Ukraine, and the last remaining treaty limiting US and Russian strategic nuclear arsenals set to expire in early 2026, the risk of nuclear escalation and a nuclear arms race with Russia is already too high. That makes it all the more important for Xi and Biden to direct their team to work harder and more steadily to reduce tensions and head off the possibility of a costly, dangerous, unconstrained three-way nuclear race that no one can win.

 https://thebulletin.org/2023/11/the-us-and-china-re-engage-on-arms-control-what-may-come-next/?utm_source=Newsletter&utm_medium=Email&utm_campaign=ThursdayNewsletter11162023&utm_content=NuclearRisk_USAndChina_11152023

November 19, 2023 - Posted by Christina Macpherson | China, politics international, USA