It’s impossible to completely understand what is instilled in you in the military unless you’ve served. Whatever sense of duty you may have had that caused you to join is enhanced to a level you never thought possible. As is your sense of sacrifice and responsibility for the the greater good and the person next to you is something you can’t quantify or even explain.
For Raiders top pick Clelin Ferrell, he was as close to understanding these concepts as one can get without having served himself. Both of his parents served in the military. His father served in Vietnam.