Draftees are by definition unwilling serfs.
There are also a lot of men who join one service (Coast Guard, Air Force, Navy) to avoid the Army, which is rated the lowest by most.
During the useless Vietnam War, all but two of the guys who enlisted did so to choose a particular program. Most did not get, by the way. Recruiters were liars and did not mention qualifying tests and how hard they were to pass. Snooky Chenault and Wesley Wilson, who spent their study hall time reading war comics enlisted in the Marines.
Snooky could not deal with Marine Boot camp and jumped the fence and ended up in jail. Wesley, who was the fattest kid in my class, broke his ankle on an obstacle course, and went through boot camp three times total before he became a Marine. He was in Korea and Germany and made sergeant and retired after 25 years,mostly because of a heart condition. I met him at the last class reunion and we had a couple of beers. He had lost touch with Snooky, and was employed with a desk job in Hayes, Kansas.
Of all the members of my class, Snooky and Wesley were the only two that WANTED to be in the military.