Politics, defense, and security are deeply interconnected fields that shape global and national landscapes. In today's volatile world, national security is a top priority for governments, and defense policies play a crucial role in maintaining peace, sovereignty, and military preparedness. This article delves into the political factors influencing defense spending, security strategies, military alliances, and the evolving nature of international security threats. From the arms race to cybersecurity challenges, we explore the dynamics of defense policy, international relations, and how political decisions impact national and global security.