Answer:
Some important jobs would be:
- Farmers: if the region is fertile enough, farmers are crucial, simply because they produce most of the food that will be consumed in the area.
- Law enforcers: any area needs some form of law-enforcement, no matter how anarchic it is.
- Doctors: some medical practitioners are also needed, in order to tend the sick and wounded.
- Merchants: a few merchants are also needed, in order to help with the importing and exporting of goods (trade).