Modern World War refers to large-scale conflicts that occurred in the 20th and 21st centuries, with a profound impact on global geopolitics. Strategic analysis of this war reveals several key factors that shaped the dynamics of the conflict, including technology, alliances, and ideology. One of the most significant aspects of modern warfare is advances in weapons technology, which has changed the way war is fought. From nuclear weapons to drones, countries’ military capabilities have increased tremendously. These weapons are not only effective in combat, but also create new threats, such as cyber warfare. Countries are now investing in intelligence and cybersecurity to protect their critical infrastructure. The threat of cyber attacks must be recognized as an integral part of modern warfare strategy. Strategic alliances also play a vital role in modern world wars. NATO and other alliances create collective defense networks that add complexity to international diplomacy. Tensions between these blocs, such as between Russia and the West, show that war is not always physical, but also ideological and economic. These conflicts often manifest themselves through proxy wars, where major powers support certain factions in regional conflicts. Ideology is also a major driver behind modern conflict. The war on terrorism, for example, has become a major reason for some countries to strengthen their militaries and expand influence in other countries. The rise of extremism and radicalization is generating unprecedented challenges to global stability. Countries must respond to this ideological shift with a more strategic approach, involving diplomacy, education, and economic development in vulnerable areas. It cannot be denied that modern world war has a direct impact on the lives of civil society. From refugees fleeing conflict to the huge economic impact, the long-term effects of these wars are far broader than military losses. The involvement of international organizations, such as the UN, in dealing with this crisis is very important. However, their effectiveness is often compromised by the pursuit of national interests among member states. Global geopolitics was also affected by the Modern World War. Developing countries are often caught in tensions between great powers, which creates extremely difficult situations. In many cases, these countries struggled to find national identity amidst foreign influences, both from the West and the East. Competition between major powers for resources and influence in the region continues, resulting in prolonged instability. The climate and health crises are also increasingly part of modern warfare. The pandemic, climate change and its impact on resources are forced to become part of strategic analysis. Countries must adapt to this crisis and understand that security does not only focus on the military. Providing basic needs, preventing disease, and mitigating climate change must now become an integral part of global leaders’ strategies. Modern world war is complex, involving multiple dimensions and actors. Diplomacy and strategy skills are now more important than ever, with a collaborative approach key to overcoming existing challenges. It’s not just war that is in the spotlight, but also the way we interact as a global community, working towards peace and stability for all.