The Five Eyes is an intelligence alliance comprising the United States, United Kingdom, Canada, Australia, and New Zealand. Established after World War II, its members collaborate closely to collect, analyze, and share signals intelligence (SIGINT) and cyber threat information. This partnership enhances each country's ability to detect and respond to global security threats, including cyberattacks, terrorism, and espionage. The alliance operates under strict legal frameworks in each member country to protect privacy and civil liberties while facilitating intelligence sharing for national security purposes.