Treason of the Heart is an account of British people who took up
foreign causes. Not mercenaries, then, but ideologues. Almost all were
what today we would call radicals or activists, who thought they knew
better than whichever bunch of backward or oppressed people it was that
they had come to save. Usually they were applying to others what they
saw as the benefits of their culture, and so obviously meritorious was
their culture that they were prepared to be violent in imposing it. Some
genuinely hated their own country, however, and saw themselves promoting
abroad the values their own retrograde government was blocking.
The book deals with those like Thomas Paine who saw American
independence as the surest means to hurt England; the many who hoped to
spread the French revolution and then have Napoleon conquer England;
historic characters like Lord Byron and Lawrence of Arabia who fought
for the causes that brought them glory; finally those who took up
Communism or Nazism. Treason of the Heart is nothing less than the
tale of intellectuals deluded about the effect of what they are doing -
and therefore with immediate reference to today's world.