Peter H.B. Lejeune

Peter H.B. Lejeune is a part-time Lecturer at George Washington University, specializing in Homeland Security and Counterterrorism. He serves as a senior intelligence liaison and emerging threats advisor to the Chief Medical Officer of the Department of Homeland Security's Office of Health Security. With over 40 years of experience across the U.S. Department of Defense, Department of Homeland Security, defense contracting, financial sectors, and state/local governments, his career spans technology, intelligence, inter-agency coordination, and international activities.

His research focuses on Influence Operations, Counterproliferation, and Crisis Management, particularly addressing WMD threats and terrorist recruitment strategies. He has led high-profile roles, including Director of Emergency Planning and Response in New York City under Mayor Ed Koch and advising the Puerto Rican government and police. Notably, he chaired the 2012 CBRN Science & Consequence Management Symposium in Switzerland.

Lejeune has contributed to national security through advisory roles on inter-agency panels, threat assessments, and counterterrorist operations. He co-created Harvard's Innovations in American Government Awards program, serving as its lead evaluator. His recent publications analyze extremist narratives, subliminal media reactions, and behavioral influence in modern warfare.

No formal academic awards are listed, but his field contributions include pioneering work in applying big data to counterterrorism and influencing operations.