I found this audio CD by Vision Forum a little advanced, but I discovered that it was simply my lack of knowledge rather than a fault in the content of the CDs. My ten-year-old son is very much into history, war, the dynamics of weapons and weaponry, etc. He has listened to the CDs several times and he thoroughly enjoys them even though they are really more like lectures. This set would be very useful for anyone wanting to supplement history curriculum with a study of war, weapons, strategic development, etc.
You can find Spears, Sabers & Catapults here: http://www.homeschoolstore.com/details/?id=9781934554142