I put up post 101 and I have run into it many times and get stuck trying to read all the posts in the graphic. It drives me nuts, so I put it in a clip because that's how I rock & roll....
I've noticed no one put out the Deltas, so I will throw them out there.
U.S counter insurgency guide. Not a horrible read, 67 pages and not 1000 + or something like Wiki.