The Daily Brief

The current tensions between the United States and China regarding nuclear testing can be traced back to a complex history of arms control and geopolitical rivalry. The Cold War era set a precedent for nuclear arms proliferation, with both the US and the Soviet Union engaging in extensive testing and stockpiling of nuclear weapons. The 1996 Comprehensive Nuclear-Test-Ban Treaty (CTBT) sought to curb such activities globally, but it has not been ratified by key players, including the US. The recent allegations against China for conducting a nuclear test in 2020, which the US claims violated international norms, echo past accusations during the Cold War when nations often engaged in clandestine military activities to gain strategic advantages. The expiration of the New Start treaty on February 5, 2026, further complicates the landscape, as it previously limited the nuclear arsenals of the US and Russia, leaving a vacuum in formal arms control agreements that China has not been a part of. The implications of these developments extend beyond US-China relations, affecting global security dynamics and the broader arms control landscape. A potential resumption of nuclear testing by the US could trigger a new arms race, reminiscent of the Cold War, as nations may feel compelled to enhance their own nuclear capabilities in response. This could destabilise regions already fraught with tension, particularly in East Asia, where North Korea's nuclear ambitions and China's military assertiveness are already significant concerns. Additionally, the call for a trilateral nuclear treaty involving China and Russia could lead to a re-evaluation of existing alliances and partnerships, as nations assess their positions in light of shifting power dynamics. Key players in this situation include the US government, particularly the State Department and the Office of the President, which is currently led by Donald Trump.