Back in the dark days of the Cold War they really knew how to keep children entertained – or scared stupid as we tend to describe the condition today. Forget about Transformers and toxic hamsters, what every boy and girl needs in order to understand their place in the world is a field guide to ICBMs, ground-to-air delivery systems and anti-personnel rockets. Huge thanks are due to the publishers of the Hippo Guide to Missiles and Rockets, and to Gair Dunlop at the University of Dundee for posting this festive treat in its entirety on Flickr. Peace on Earth is overrated at the best of times – so lock and load. And remember: if it’s not scaring you, then it’s probably not doing that much for your enemy either.