Fostering trust in international relations is a critically important yet challenging endeavour. Over recent decades, trust deficits among states have intensified and become more widespread, resulting in a systemic condition of pervasive mistrust. The United States (US)-People's Republic of China (PRC) rivalry has played a pivotal role in generating this pervasive mistrust, as states pursue hedging strategies to mitigate their actual or potential vulnerabilities and safeguard their autonomy. A trust-building strategy is needed to counteract the detrimental effects of pervasive mistrust and bolster multilateralism in order to address critical global challenges in the 'dangerous 2020s'.