How did kings raise armies?

by sachio222

Specifically, I was reading about the war of the roses, and all the details simply take for granted that the kings "raised an army" and fought each other. What was the process like?

jschooltiger

Hi there, I noticed that there were a couple of substandard answers in this thread that have been removed. You may want to repost your question again at a different time, or you may be interested in some of these previous answers on similar questions:

https://www.reddit.com/r/AskHistorians/comments/2mp6jh/repost_in_the_old_days_it_seems_like_dissident/?

https://www.reddit.com/r/AskHistorians/comments/19vyub/how_were_the_romans_always_able_to_have_enough/?

https://www.reddit.com/r/AskHistorians/comments/18b2ao/how_was_william_the_bastard_able_to_amass_an_army/?