Caledonia provided the Romans with essential goods such as timber, wool and leather as well as lead. Some native tribes fought on the side of the Romans as auxilliary soldiers who were first into battle. The tribes did this to help protect themselves from rival tribes to the north or from the Romans themselves.
This clip would be useful as a stimulus for discussion on how advanced the Romans were in their organisation of armies and colonisation. Children could further research what the Romans needed the timber, wool, leather and lead for. This can also be used as an opening to an investigation on Roman colonisation and expansion of their Empire and as a look at who the different Caledonian tribes were and how their lives and customs compared with those of the Romans.