In many ways, the life of a Roman soldier was similar to that of soldiers in modern armies. To begin with, he joined up either through conscription, when the government sorely needed troops, or by enlisting voluntarily. He then underwent vigorous training not unlike the "boot camp" today's military recruits endure. Eventually, his superiors posted him to a legion, fort, mobile army, naval base, or some other unit or facility where he performed various duties according to his abilities and the military's needs.

Also like his modern counterparts, a Roman soldier often led a dangerous, harsh life, particularly when campaigning during wartime. The difference between the modern and ancient soldier in this respect is that, unless killed or seriously wounded, a modern soldier can reasonably expect to survive his term of service and go on to other endeavors...