The Roman army did not employ slaves (except during one Punic war). Only the free can fight.Henry Smith Williams
A great deal of the capability of an army is its dedication to its cause and its will to fight. You can have the best equipment in the world, you can have the largest numbers in the world, but, if you're not dedicated to your cause, if you don't have the will to fight, then, you are not going to have a very good army.Norman Schwarzkopf