Defense policies are strategies and guidelines that a government establishes to protect its national security and interests. These policies outline how a country will respond to threats, manage military resources, and engage with allies. They can include decisions about military spending, troop deployment, and the development of defense technologies. Additionally, defense policies often involve international cooperation, such as treaties and alliances with other nations. For example, NATO is a military alliance that helps member countries coordinate their defense efforts. Overall, these policies aim to ensure a nation's safety and stability in a complex global environment.