So it's awesome that I have a bunch of units in the Garrison of my Fief, I'm assuming it makes it harder to take, like a castle. But uhh... How'd they get there? Or how can I edit how many people are there, like editing the garrison of a castle?

I'm super confused as to why it says I have 54 units in my fief, 8 of which are actual combat units (Not peasants and farmers)

I would love to add more...