We saw one guy, over near the side of the Lincoln Memorial, a Marine in his blues, on the anti-war side. All the others were hippie wanna-be types, but this guy wore his uniform.
There was something about him that drew an extra level of derision from many of the vets there.
I remember him. He got the “special” attention because not only was he in uniform but he was also an NCO.
All the younger guys there on our side who had the high and tight haircuts and the regular civilian clothing were active duty military (mostly Marines).