Can anyone recommend some good primary sources that demonstrate use of shield walls in combat? I don't really know when shield wall use was at it's peak, but any sources from around this area will be really helpful. Thanks!
The sagas describe shield walls a couple of times - the only ones I can think of off the top of my head are Egils saga, during the Battle of Brunanburh, and Sverris saga konungs. You're not going to get a whole lot of detail, though, as the sagas weren't written like modern novels describing the push of the wall etc., but they are used and referenced there.