Your skill, and a little luck, will determine the fates of two would-be conquerors.
"The Barbarians: Games of the Fall of Rome and the Mongol Invasion of Europe" includes two wargames.
In "Sack Rome" two or three players takes turns seeing how long it takes to capture Rome.
"Mongol" is for two players and the Mongol player attempts to occupy the civilized world in a set time.