In the last few decades, the dynamics of relations between the United States (US) and China have been in the international spotlight. These two great powers not only dominate the global economy, but also have significant political, military and cultural influence. The tensions that arise between the two are influenced by many factors, ranging from economic competition to regional security issues. One of the main pillars underlying this relationship is trade. The US and China are each other’s largest trading partners. However, the trade balance imbalance has created tensions, especially when the US claims that China is not competing fairly. Actions such as the tariffs the US imposed on Chinese goods represent an attempt to pressure Beijing and promote domestic products. On the technology side, competition is heating up. China with the ambition “Made in China 2025” seeks to become a leader in high technologies such as artificial intelligence, robotics and biotechnology. The US, aware of this potential threat, is taking steps to limit access to sensitive technology to Chinese companies. In this context, companies like Huawei have become symbols of the technological dispute between the two countries. Security issues in the Asia-Pacific are also increasingly tense. The US military presence in the region, especially in allied countries such as Japan and South Korea, is considered by China as a threat. Meanwhile, China increased its military power and claimed most of the South China Sea, which became a source of conflict with neighboring countries and the US. International politics is also influenced by these relationships. The US is trying to build alliances with other countries to counter China’s influence, such as through the Quad, which consists of the US, Japan, India and Australia. China, on the other hand, is developing initiatives such as the Belt and Road Initiative to increase its global influence and secure trade routes. Not only does conflict occur, but also collaboration on certain issues, such as climate change, often becomes a bridge for the two countries. The agreement on reducing carbon emissions has an important global impact and shows that, despite competition, there are areas where both sides can work together for the common good. In the future, the dynamics of relations between the US and China are predicted to continue to fluctuate. Challenges and opportunities will arise along with the domestic political developments of each country and the global crisis. Understanding this relationship is key to predicting the direction of wider world development. With rapid population and technological growth, potential interactions between these two great powers will have implications for global stability and societal well-being.