New dynamics in the context of the modern Cold War refers to the rapidly changing strategic and geopolitical changes following the end of the classic Cold War era. Key factors in this dynamic include great power rivalries, technological tensions, and global power transitions triggered by the economic rise of countries such as China and India. One important dimension is China’s rise as a global power. Through the “Belt and Road” initiative, China is sharpening its influence in Asia, Africa and Europe, seeking to dominate world trade routes. This creates tensions with the United States, which has historically sought to curb China’s ideological expansion and influence. The American First Policy deepened the gap between the two countries in terms of trade, technology, and military. Technology is becoming a new battlefield, with conflicts in the cyber domain and competition in the development of artificial intelligence (AI) increasingly heated. Countries are competing to create more efficient and sophisticated systems. For example, hacking incidents by groups thought to be from Russia and China against critical infrastructure in the US show that modern war can be fought without direct physical conflict. These tensions require countries to strengthen their cybersecurity capabilities, triggering the development of new defense policies. Climate change and natural disasters are also factors that cannot be ignored in the new dynamics of the Cold War. Countries tend to unite in facing this global problem, but it can also lead to resource conflicts. For example, struggles over water access in regions such as Southeast Asia and North Africa can give rise to tensions between neighboring countries. On the other hand, multilateral organizations such as NATO and the G20 must adapt to this new situation. Russia’s actions in Ukraine provide a clear example of how regional conflict can have global impacts, prompting NATO to strengthen its position in Eastern Europe and increase collective security cooperation. The consequences of this invasion not only proved a military challenge but also an economic impact such as sanctions imposed on Russia by Western countries, which created global market instability. Meanwhile, the emergence of non-state actors, including terrorist groups and international criminal organizations, adds to the complexity of modern warfare. The nimble financing and use of high technology by these groups challenges state authority, creating a situation where the lines between war and domestic security are increasingly blurred. In a social and cultural context, propaganda and disinformation have become new weapons in this conflict. Major powers use social media platforms to spread information that supports their agenda, undermining public trust and creating social divisions within enemy states. Research shows that resilience to disinformation is key to countering these negative influences. The new dynamics of the modern Cold War require world leaders to adapt to a turbulent reality that is constantly changing. Collaboration at the international level, rather than confrontation, provides an opportunity to solve large-scale global problems more effectively than a military approach. A balance between diplomatic activities and defense needs must be considered so that the world does not fall into the shackles of protracted conflict.