John Spencer is an award-winning scholar, professor, author, combat veteran, and internationally recognized expert and advisor on urban warfare and other military-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 strategic research groups from the Pentagon to the United States Military Academy.

Spencer currently serves as the Chair of Urban Warfare Studies with the Madison Policy Forum. He recently served as the Chair of Urban Warfare Studies at the Modern War Institute at West Point, Co-Director of the Urban Warfare Project, and host of the Urban Warfare Project podcast. He also served as a Colonel in the California State Guard with an assignment to the 40th Infantry Division, California Army National Guard as the Director of Urban Warfare Training.

Serving over twenty-five years in the active Army as an infantry soldier, Spencer has held ranks from Private to Sergeant First Class and Second Lieutenant to Major. His assignments as an Army officer included two combat deployments to Iraq as both an Infantry Platoon Leader and Company Commander, a Ranger Instructor with the Army's Ranger School, a Joint Chief of Staff and Army Staff intern, a fellow with the Chief of Staff of the Army's Strategic Studies Group, and Co-Founder, Strategic Planner, and Deputy Director of the Modern War Institute at West Point.

Spencer holds a Master's of Policy Management from Georgetown University. His writing has appeared in the New York Times, USA Today, Wall Street Journal, Washington Post, LA Times, NY Daily News, Wired Magazine, Politico, The Hill, Foreign Policy Magazine, Defense One, Army Magazine, and many other publications. Spencer is also a regular military analyst and commentator for CNN, MSNBC, BBC, and numerous news and media organizations. He currently lives in Colorado Springs, CO, with his wife and three children.