Defending the Roman Empire from multiple attacks Original Research Article

Motivated by articles by Stewart (Defend the Roman Empire!, Sci. Amer. (December 1999) 136–138) and ReVelle and Rosing (Defendens imperium Romanum: A classical problem in military strategy, Amer. Math. Monthly 107 (7) (2000) 585–594), we explore a strategy of defending the Roman Empire from multiple attacks by stationing as few legions as possible.