Victor Lefebure was an author and expert in chemical warfare whose work significantly contributed to early discussions about the military and industrial use of chemistry. Having gained first-hand experience during World War I, Lefebure served in roles that exposed him to the operational and strategic dimensions of chemical weapons. His professional background allowed him to combine scientific understanding with practical insights into the dangers and implications of chemical warfare. He became an important voice in advocating for transparency, international regulation, and ethical responsibility concerning chemical research and its applications in defense. Beyond his wartime contributions, Lefebure engaged in public discourse through his writings, urging governments to recognize the enduring threats posed by chemical industries and the need for coordinated disarmament policies. His perspectives often linked the progress of modern science with global security concerns, emphasizing the dual potential of chemistry for constructive and destructive purposes. Through his analytical approach and advocacy, Lefebure helped shape early international awareness of chemical weapons and their role in future conflicts.