Warfare and Conflict in the 21st Century

With Lieutenant General (ret) H.R. McMaster, former Assistant to the President for National Security Affairs and author of Battlegrounds: The Fight to Defend the Free World. 

The war in Ukraine, ongoing conflict in Southwest Asia, and the U.S. raid in Venezuela all reflect the changing character of modern warfare. New tactics and technologies that are reshaping the modern battlefield. In addition, the latest U.S. National Security Strategy and National Defense Strategy have challenged long-standing alliances and perceptions of core U.S. national interests. To help us better understand where warfare and conflict are headed, Lieutenant General (ret) H.R. McMaster, the former Assistant to the President for National Security Affairs and author of Battlegrounds: The Fight to Defend the Free World, will join us for a conversation at the new Tucson Military Vehicle Museum. 

Deadline registration date

Apr 20, 2026, 12:00 PM MST

Bio:

H.R. McMaster served in the US Army for thirty-four years. He retired as a lieutenant general in June 2018 after serving as the Assistant to the President for National Security Affairs. McMaster held various senior command and staff positions including Director of the Army Capabilities Integration Center and commanding general of the Maneuver Center of Excellence at Fort Benning, where he oversaw all training and education for the army’s infantry, armor, and cavalry force. He commanded the Third Armored Cavalry Regiment in Iraq and Eagle Troop, Second Armored Cavalry Regiment in Operation Desert Storm. McMaster holds a PhD in military history from the University of North Carolina at Chapel Hill and his most recent book is Battlegrounds: The Fight to Defend the Free World. 

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