Mark McDonagh

Mark McDonagh

Mark McDonagh is cofounder of the National Security Decision Making (NSDM) Game, has been running
NSDM games since 1990, and is the staff’s primary military adjudicator and a principal scenario and cell
developer. A retired US Navy Captain, he served on the latest classes of nuclear submarines and spent a
total of 12 years’ on campus at the Naval War College. He has been conducting operations analysis for
submarine warfare since retirement from the Navy. He lectures extensively on geopolitical topics and on
military history with particular expertise in World War II, the early Cold War, modern weapons technology
and the history of submarine warfare. He holds BS and MS degrees in physics with emphasis on
mathematical models and Chaos theory.