Wow, thanks for the link! Fascinating, I hadn't heard of that one.
I am thinking lots of folks have never heard of it. I am wondering who they where and where did they come from.
Very interesting link- thanks for posting.I enjoyed this book on a similar subject:https://www.amazon.co.uk/Warfare-Prehistoric-Britain-Julian-Heath-ebook/dp/1848683693/ref=sr_1_1?ie=UTF8&qid=1470262371&sr=8-1&keywords=warfare+prehistoric+britaincheers,Pete.
Thanks, I will put it on my wish list