So, I want to construct a knock-out blow wargame. In my PhD/book, I define an ideal knock-out blow from the air as having six key characteristics. Three of these describe the attack itself: surprise, scale, and speed. Three describe what it destroyed: infrastructure, morale, and civilisation itself.
Starting with the attack, as this will define most of the actual mechanics of the game:
- Surprise. An attack would be next to impossible to detect. Strategically, an attack would likely come without any warning; the aggressor would be able to time the offensive for maximum effect, and the defender would not be mobilised. Even if an attack is expected, incoming bombers could not be detected before crossing the border, which in the British case means that the best that could be done would be to mount inefficient standing patrols to try to intercept them before they reached London, or attempt to catch them on the way back after unloading their cargo. And even then, the bombers would be hard to find, and able to defend themselves very effectively. Bombers will be the most important units in the game, therefore; fighters might even be abstracted out into the combat system. Also, if the initial attack does not incapacitate, then the defender would be able to launch its own raids on the aggressor, so both sides will need to have bombers.
- Scale. The aerial fleets involved would be massive compared with the strategic bombing campaigns of the First World War, maybe even those of the Second, with hundreds, thousands or even tens of thousands of bombers. Some of these could be commercial bombers, airliners converted to military use, which might be a bit less effective than purpose-built bombers, but not by much. The low interception rates mean also that there would be little wastage. So there might be a lot of units, though the tendency to fly en masse might mitigate this. It depends on the scale.
- Speed. A knock-out blow would operate very quickly: months, weeks, perhaps even days. This factors into the length of a turn. An entire knock-out blow could be simulated in, say, 15 turns of a week or so. Note, however, that at this scale it would take much less than a turn for bombers to reach the target. So a strategic level game like this would not involve units flying around the map, but rather they would be committed in an abstract sense to a target or even a theatre. They might not even be represented as counters at all, but as a numeric force level, which moves up and down according to attrition or production (which could be a factor at this scale). You might not even need a map (though if there are multiple theatres it might help). So, quite abstract. An alternative would be to have a smaller scale game, simulating something like one day in the war, and turns being maybe two or three hours. Then you could do the more familiar, and perhaps more accessible, style of game with units moving around the map and opposing units trying to stop them. Another level would be the tactical one, fighters vs bombers. At this scale, a game might not be very different from the historical reality, since it is a given that interception has taken place. But bombers in formation would be much more capable of self-defence, even without escorts (which were generally not thought necessary).
Turning now to the effects of a knock-out blow, the question is whether to simulate these directly or abstractly. It would be possible in principle to simulate a nation's industries, communications, resources, ports and civilian morale, and the interdependencies between them. Attacking any of these would have knock-on effects, and eventually the cumulative damage would cause society to break down completely. At this point, if not before, effective resistance would cease and the knock-out blow has succeeded. Factories, power plants, ports, railway and road nodes, administrative centres, etc, could be marked on the map and selected as targets; civilian morale is obviously more abstract, but equally obviously attacking population centres would be the best way to attack morale. (Hello, London.) Alternatively, all these targets could be taken off the map and damage to each type tracked by moving a counter along a track. Much easier, though perhaps less fun. Again, it would probably depend on the scale of the game itself, and whether there is a map at all. Either way, some way of representing the knock-on effects would be needed; perhaps when damage to one target system reaches a certain level then damage could be added to all of them. A similar mechanism could be used to determine the degradation of a nation's fighting ability, with production falling off as the knock-out blow proceeds, for example. (Raids directly against the enemy air force could also be undertaken, which might degrade it more rapidly but at the cost of passing up an opportunity to bring a knock-out blow closer.) Or all of that could be emulated much more simply with a victory point system.
So this gives some idea of the considerations involved in designing a game simulating the knock-out blow, not as it would have been fought, but how it was thought it would have been fought. Some things have become clearer. The key thing is decide the scale of the game, since war looks different at different scales. This is why Philip Sabin's concept of nested simulations is useful: two or three games are better than one (at least if your goal is enlightenment rather than enjoyment). In this case, there's a strategic game with turns of a week or so, and a large-scale map or no map at all; an operational game lasting a day and with a map covering the parts of each combatant reachable by its opponent's air force; and a tactical game at a much smaller scale, with turns lasting seconds or minutes and units of individual aircraft, say. As I've suggested above, I think this tactical game would tell us less about the knock-out blow than the other ones, so henceforth I'll concentrate on the operational and strategic games.