cohort

cohort - noun - a body of about 300 to 600 soldiers; the tenth part of a legion; any group or body of warriors; a group or band of people; a companion; an associate

I wrote the definition for this word in reverse order. The obsolete version is the first definition I give and it follows along the lines of my previous word. (For the moment we seem to be interested in Roman history!) Anyway, a cohort was the more mobile infantry that was used to outflank a phalanx on several occasions as the Romans were starting to dominate their world. One of the reasons the Spartans were able to be nearly invincible in wartime was their complete lack of fear when facing the enemy as well as their incredible discipline and hard training. They managed to win in phalanx battles, often out of intimidation as much as anything. The Romans had most of the same characteristics. They were fearless in battle and more disciplined than any army of it's time (or maybe even since!). However, they brought a higher degree of mobility and speed to warfare (as well as effective battle formations) so they could defeat enemies even though out numbered. That's not to say they didn't use some of the more common forms of war (like the phalanx), they just seemed to do it better or faster.