Protection, often referred to as defense, involves measures taken to safeguard individuals, property, or nations from harm or danger. This can include physical barriers, security systems, and legal frameworks designed to prevent threats and ensure safety. In a broader context, protection can also encompass military strategies and alliances, such as those formed by NATO or the United Nations, aimed at maintaining peace and security among nations. Effective protection requires planning, resources, and cooperation to address potential risks and respond to emergencies.