Diplomatic tensions between the United States (US) and China have increased sharply in recent months, creating a significant impact on international relations. Various issues are at the heart of the matter, including trade, cyber security, human rights, and influence in the Asia-Pacific region. One of the main sources of tension is the trade war that started in 2018. Even though there is a negotiation phase that looks promising, the tariffs imposed by both countries are still ongoing. In 2023, the US introduced a new policy to limit exports of advanced technology to China, especially related to semiconductors, which are seen as strengthening China’s military capabilities. In the security sector, tensions in the South China Sea are increasing. China claims almost the entire sea area, which is a major trade route. The US, along with several allies, such as Japan and Australia, are intensifying freedom of navigation operations to challenge the claims. These joint military exercises are seen as a provocative act by Beijing, increasing tensions in the region. Human rights are also a sensitive issue. The Biden administration has openly criticized China’s treatment of the Uighur minority in Xinjiang, as well as repressive measures in Hong Kong. China’s response was very firm, rejecting the accusations and saying that the US intervention was a form of interference in internal affairs. The cyber sector has also become an arena for new disputes. The US claims that cyberattacks carried out by China-linked actors have stolen sensitive data from various companies and government agencies. The spread of this information created an environment of deeper distrust between the two countries. Diplomatically, efforts to hold dialogue have again hit a dead end. Meetings between high-ranking officials from the two countries are often characterized by mutual accusations. At the same time, the US is trying to build new alliances in the region by holding meetings such as the Quad (US, Japan, India and Australia), aimed at balancing China’s power. Meanwhile, China is increasing cooperation with Russia and other developing countries in response to pressure from the US. Economic diplomacy is also a key strategy for Beijing, which is investing in infrastructure in various countries through the Belt and Road Initiative (BRI). The conflict between the US and China may also affect global markets. Investors are worried about the consequences of these tensions on supply chains. Fluctuations in exchange rates and commodity prices can occur due to political decisions taken by both countries. Climate change and other global challenges also show that despite tensions, cooperation is still necessary. However, with increasing nationalist rhetoric, the challenge of achieving consensus and collaborative solutions is greater. The latest diplomatic tensions between the US and China are creating global uncertainty. Meanwhile, the parties involved must find ways to reduce tensions for the sake of world stability and peace. Snu, constructive diplomacy is the key in dealing with these complex issues.