When I first got drafted in 1970 I never considered sentiments like that, I just did my duty and went back into town and thanks to my Father's influence from his Air Corps days, I joined the Air Force. After signing the agreement to join I thought that at least it got me out of town where I would not have to worry about working at the RCA record plant, the factory where my grandmother was making engines for the new C-5 transport, or worse yet the new glass factory I toured or any of the many other dead end jobs in town.
At the end of my first 4 year term I realized that my b est bet was staying where I was. I was in Law Enforcement and by that time I was fairly good at it. With really nowhere to go I stayed and by my second re-enlistment I had two Vietnam tours and some connection with the 1973 Yom-Kippur War but a better understanding of things. My girlfriend from H.S. went to college and broke our ingagement near the end of my second tour but I found somebody who didn't mind my job once she got used to us carrying weapons. We got married in 1977 and are still together.
During that time I came to realize what our responsibillity wasand the cost of upholding it. During that time I had taken some hostile fire, taken on some unfriendly people on both sides of the fence, almost gotten killed in a couple ways, been mistreated by numerous people I came across until I finally was forced to leave.
Despite the wandering, the point is that eventually everyone who wears a uniform, military or otherwise, will usually come to understand the meaning of that quote.
In some cases ordinary people understand and live by those words.
hopefully this makes some sence to to the reader.