John Spencer is an award-winning scholar, professor, author, combat veteran, national security and military analyst, and internationally recognized expert and advisor on urban warfare, military strategy, tactics, and other related topics. Considered one of the world’s leading experts on urban warfare, he served as an advisor to the top four-star general and other senior leaders in the U.S. Army as part of a strategic research groups from the Pentagon to the United States Military Academy.

He is the author of three books: Understanding Urban Warfare, Connected Soldiers: Life, Leadership, and Social Connections in Modern War and The Mini-Manual for the Urban Defender.
Spencer currently serves as the Chair of Urban Warfare Studies at the Modern War Institute of West Point, Co-Director of the Urban Warfare Project, and host of the Urban Warfare Project podcast. He also serves as the Chair of Urban Warfare Studies with the Madison Policy Forum, a New York based think-tank. He is a founding member of the International Working Group on Subterranean Warfare.

In February 2022, Spencer wrote a guide, The Mini-Manual for the Urban Defender, for the citizens of Ukraine on how to defend their cities. The manual was translated into Ukrainian and spread widely across all of Ukraine. It is now available in sixteen separate languages.

Spencer holds a Master of Policy Management from Georgetown University.