Lt. Gen., US Army (Ret.); former US National Security Advisor; Hoover Institution
Lieutenant General H.R. McMaster (ret.) served as National Security Advisor of the United States under President Trump and is at the Hoover Institution. On 8 September 2025 he gave the special address “Ukraine & The Future of War” at the Ukraine Freedom Summit in London, to a room of Ukrainian veterans, defense industry leaders and serving soldiers. His argument: Ukraine is fighting an axis of aggressors, not Russia alone; the war mirrors the Western Front of 1916; and planners get into trouble when they forget the four continuities of war — politics, the human dimension, uncertainty and the contest of wills.
I don’t believe that Vladimir Putin will stop until he is stopped.
Photo: Hoover Institution.