http://www.dagorhir.com/HowTo/glaivefighting.htm
I am posting this because I just got an army with the new (at least to me) spear looking weapon with the 5 blades on the end. I went on lego.com and found out it was called a glaive so I did some research and found out how they fought with them. I knew they were for going against calvary charges, but this was interesting to read. This is from one of the many medieval fighting recreation groups. Enjoy