And the analogies do come in particularly usefully when, I think, writing the post-War. (Wars change societies, and change those who fought in them or survived them. And indeed, they have been known to provoke the survivors to change the society further, as witness various khaki elections, the Coupon Election and Homes Fit for Heroes, and the 1945 Labour victory under dear old Clem. Certainly I cannot - given their canonical characterisation - imagine Hermione and Harry and Dean Thomas and Justin Finch-Fletchley, say, flush with victory and applauded by all, wearing, for a minute longer than they can spare for rebuilding elementary infrastructure, the Secrecy Regime, unelected government, no division between policing and a Riot-Act-era militia, and all the rest of that balls.)