Anyways, some I like:
Glory. I like this picture because it depicts glory.
If I remember correctlty, the troops in front of the school are all free men, and are all volunteers.
I actually own this picture, like the photo of it. Or a reproduction at least. What I find cool about it is, of course, the black officer.
And just for something different, some pictures from the Canadian military:
Freedom, man. Gotta love it.