International security refers to the measures taken by countries and international organizations to ensure the safety and stability of nations and their citizens. It encompasses a wide range of issues, including military alliances, conflict resolution, and the prevention of terrorism. Key players in international security include the United Nations, NATO, and various regional organizations that work together to address global threats. The concept also involves addressing non-traditional security challenges, such as cyber threats, climate change, and pandemics. These issues require cooperation among nations to develop strategies and policies that promote peace and protect human rights, ensuring a safer world for everyone.