User blog comment:Imperium Guy/Battle of Thermopylae: Alternate Outcome/@comment-1630894-20120401035620/@comment-30228680-20120401231242

During Rome's time, Persia already recovered from the havoc of their disastorous expansion attempts and Alexander, so it be msot likely that Persia would win if the Romans came. After all, they are not used to the mountains compared to the Persians.