Province Defense

[Daynarr]

You get 2 different types of troops for every level of PD and after 20+ you get additional 2 different troops types. That’s a lot of troops if you invest in it. Also, commanders you get are often not bad and very often second commander (for levels of 20+) is a mage. Of course, this isn't exact rule as some nations vary in PD department, but most of them are like this.