Mr Tunstill introduces rules for the various aspects of wargaming as he canters through the periods - movement is covered in the ancient period, firing and melee rules are introduced in the early medieval period (or the Dark Ages, if you use the author's classification), morale appears in the later medieval period, then more firing rules appear as the horse and musket period emerges. There are yet more firing rules covering the later horse and musket period (the ACW in particular), before the author concludes that 'modern wars', from WW1 on, are rather too complicated and difficult to cover without developing rather complicated and difficult rules, which he has no room to include. This latter reminds me of Charles Wesencraft's conclusions in Practical Wargaming. All a bit strange considering Donald Featherstone had provided 2 perfectly workable sets for WW2 in his 1962 classic, War Games.
Mr Tunstill's approach, in a book first published in 1969, shows a strong faith in time and distance scales, and produces some straightforward and fairly traditional rules which are a little more advanced than those proposed by earlier authors. What is missing is an overview of how the various elements come together in a game move, though the traditional move-fire-melee-morale sequence is implied. Simultaneous movement to written orders is sternly insisted upon. For any newcomer in 1969 who was trying to 'discover' wargaming, cobbling together a complete set of rules for a particular period using this book might have been a bit tricky, though perfectly possible with a bit of initiative and research.
Interesting to note that by John Tunstill's time, 'wargames' appears to have become one word, a situation which has continued to the present.
Overall, an interesting read and a book I know I shall come back to in the future. A worthy addition to my collection of old wargames books. It is good to record that Mr Tunstill is still with us, at least according to this biography.