Whooooooo, maybe this topic needs a bit of a refocus

The original question I suppose was, Can a teacher teach military history and be respectful?
Yes, of course! I'm a history student working on my BA4 and with hopes of becoming a teacher. So, this is in my area. Maybe I can relate a story which while isn't about military history, touches on this topic kind of.
I took native history with a non-native teacher. While speaking with another aboriginal about this class, we had this conversation about how she had HUGE doubts on the class as she really did not believe a non-aboriginal could teach aboriginal history and give it justice. But, she took the course anyways - with every thought geared towards that he would not be able to pull it off...
However, she was a convert at the end. He had such passion and respect for the culture and the people, that she was absolutely sold on that a non-aboriginal WITH PASSION AND RESPECT could teach a subject they do not have first-hand knowledge about....
As many of you could imagine how strange it would be to have someone teach your culture's history (it's mine too!) to others and not be of that culture, you'd be a bit weary. However, I thought he did an amazing job and this other girl who took it the year before, thought so too.
So, I believe the same could happen with military history. I think if you give a subject the passion, respect and such, your enthusiasm and love of the subject will come through. Yes, having first hand (primary) experience is good, it's not always necessary.
Good luck with the teaching, hope to be there someday soon too

swahili