Military
draft for Vietnam "conflict"
Conscription
https://www.statista.com/statistics/...0Vietnam%20War.
Lottery
https://www.sss.gov/history-and-reco...nam-lotteries/
Enlisted; if going to be drafted, might as well choose a training
Myself, after training: 189th AHC at base camp Holloway; Pleiku May 1967- Feb.1969