Harold Nicolson. Public Faces: A Novel. London: Constable, 1932. A fantasy by the well-known diplomat, politician and diarist (and husband of Vita Sackville-West) about what might happen in 1939 if his political friends were in power, and the storm clouds of war gathering again. I'm not quite sure if it technically counts as an air war novel, as I haven't read it yet, but if not, it is at least from a related genre: the plot revolves around the development and use of atomic bombs (by Britain) - an early use of the concept - which nearly pushes the world into the abyss.
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