Who's in an Army?
Parent page Army Stat Block
Parent page Army Stat Block
As the majority of citizens of the PCs' kingdom are assumed to be humans, the majority of the soldiers in a basic army are humans as well. Other ancestries may also be part of the army, but not enough to adjust the basic assumptions of the army's abilities. For example, having some dwarves in a mostly human army won't grant the entire army darkvision. There are some tactics that allow armies to specifically train to take advantage of ancestry abilities like this, and some of the specialized armies you'll eventually have the chance to recruit are made up entirely of ancestries other than humans.
At the GM's option, the PCs could recruit a basic army comprised entirely of one of the core ancestries other than human.