The term 'Roman Army Leader' can be summarized by the crossword solution of 'Centurion, ' which is a nine-letter word. A Centurion was an officer in the Roman army who commanded a century, or a unit of 100 soldiers. Centurions were highly respected and held a great deal of authority within the Roman military. They were responsible for leading their troops into battle and ensuring that orders from higher ranking officers were carried out.