From Hoplite to Harrier - A history of warfare. Exploring advances in technology and tactics A BBC World Service radio documentary series from November 1995 in 10 parts - part of the BBC's World Service Archive Project and hence available currently on the BBC Iplayer. http://www.bbc.co.uk/programmes/p034ptwn/episodes/guide Here's the one on the Second World War: Second World War, From Hoplite to Harrier - BBC World Service "Blitzkrieg is a military tactic that used mobile forces and locally concentrated fire power. Known as "lightning war" it brought them success often. The advent of the tank fundamentally changed war." I was slightly surprised by the voice at the beginning, as it starts out a tiny bit like the Hitch Hiker's Guide to the Galaxy ;-)