Total Defense Day is observed in Singapore every February 15, commemorating the anniversary of the British surrender to the Japanese in 1942. This significant holiday serves as a reminder for Singaporeans about the importance of self-defense. The Total Defense strategy, which incorporates elements from countries such as Denmark, Austria, Switzerland, Sweden, and Finland, consists of five key aspects: Military Defense, Civil Defense, Economic Defense, Social Defense, and Psychological Defense. A notable event on this day is the island-wide alert signal that sounds at 12:05 a.m. through the Public Warning System and local radio stations, followed by explanations of emergency measures. Additionally, Civil Defense messages are delivered in schools to educate students about the significance of the day and the actions to take during emergencies.