As things got worse for Germany, they got exponentially worse for its Jewish population. Rations in the ghettos plummeted, furs were expropriated in the dead of winter and Jewish families evicted from their homes to make way for Aryans dispossessed by the bombing.

This book asks huge questions, and hints at answers. Did Roosevelt actively court the attack on Pearl Harbor to bring America into the war? Did Churchill have a hand in the fact that nobody in Coventry was warned about the devastating imminent bombardment? The one it moves tentatively towards is: did the second world war accelerate or even bring about the Final Solution?

These are serious questions — but by not engaging with secondary sources, and not offering a narrative line or a direct argument about causation or motive, Baker sidesteps a degree of responsibility. He meticulously cites his sources, but does rather less by way of testing them. And by arranging the dots so that the reader irresistibly joins them up — there are many deft touches of tendentious colour — the author is able to have his cake and eat it. It makes this reader, at least, uneasy.

Narrative history, arguably, imposes an artificial order on a sequence of chaotic and irrational events. Baker’s method, therefore, can be seen enshrining in its formal structure a deliberate challenge to the idea that the history of the second world war made any sense. But it also runs the risk of inviting the reader to impose an occult order: it is, to follow the analogy of painting, a form of historical impressionism. Narrative history makes its judgments explicit, and thereby leaves them open to challenge.

Baker offers unanswerable evidence, though, that the prosecution of the war by the Allies was in many details as bestial as that by the Nazis, and sometimes a good deal worse. We are invited to shake our heads at the idiotic rhetoric, the exterminatory hatred, the savage and callous tit-for-tat, the determination at every turn to escalate on the logic that if violence wasn’t working you simply needed more of it and nastier.

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