This video explores the Principle of Precaution, an element of IHL that focuses on minimizing harm to civilians and civilian objects in times of armed conflict. It outlines the principle as a fundamental norm, closely related to the principles of distinction, proportionality, necessity, and humanity. Concentrating on Article 57 of Additional Protocol I to the Geneva Conventions, the lecture details the specific responsibilities it places on parties involved in military operations, such as ensuring the accuracy of target identification, selecting methods to reduce civilian damage, and avoiding attacks that may cause disproportionate civilian harm. The video also discusses the historical development of the principle and its reflection in various military guidelines, providing a thorough understanding of the duty to safeguard civilians during warfare.