The force is primarily made up of conscripts taken from the city. The city policy is that able bodied males must serve a mandatory 5 year tour of duty for each 50 years of their life. This means that Dwarves typically serve 2 tours, with a few exceptional Dwarves serving 3 tours. Elves and Eladrin typically serve between 4-8 tours and most other races are only able to serve 1 mandatory tour. Of course, a citizen may opt to make military service into their career, at which point after their first tour they may reenlist.
The defense force’s primary duty is to maintain vigilance against possible external attacks. The force maintains patrols and check points at various locations in the area immediately around the city as well as 5 primary extended lookout posts which guard the primary avenues in and out of the city.