Typical government employee attitude..."we just do so much for you peons and know so much more than you."
I wouldn't have phrased that precisely that way (I am a gentleman) but that statement is nonetheless true: I do know a lot more than you do about artillery, combat, unit leadership (having been a commander), defense requirements and acquisition, research, development, and experimentation, small arms, optics, and a whole lot of other subjects you aren't cleared to know about. Simple fact.
Too bad you didn't get involved and help your country. You and many others are lucky that I did get involved and learn what I learned and successfully apply that knowledge. Keeps you from have to attend compulsary Chinese language classes.
A simple "thank you" is sufficient.