Roman Republic to Empire Practice Test

A legion is meant to be a large, self-contained unit of heavy infantry. The standard size for a legion is about five thousand soldiers, organized into ten cohorts and led by a legate. This core infantry number is what the question targets, with additional cavalry and allied auxiliaries sometimes accompanying the legion, but the typical infantry count sits near 5,000. The other numbers don’t match the usual legion size: two thousand is much smaller than a full legion, fifteen hundred is closer to a single cohort or smaller detachment, and ten thousand would be larger than a single legion could commonly field. So, about five thousand best fits how Roman legions were structured.