Context:

Explicitly mentioned as 'a famous book by John Lukacs, the historian' about the critical days in late May 1940 when Britain decided whether to fight on or negotiate with Hitler. James describes it as 'completely brilliant' on the cabinet meetings during this period

Context:

Referenced when discussing the contrast between Churchill as a reactionary and Hitler as revolutionary. The book is described as exploring the theme that Churchill represented an antiquated order while Hitler seemed to embody the future in 1940.