Summer reading kicking in so here are two more reviews posted in some form on Facebook.
Bleak. An examination of the duplicity of an American Nazi who was also a spy.
Very well written and explores why Nazism triumphed amongst people - as we all come from Mother Night - the Darkness. So the spy has no heroism or any belief. Reflected also in America's justification for fighting - personified in the pathetic soldier O'Hare who sees it as his mission to track down Campbell after capturing him originally as a Nazi.
The human exception to this is his relationship where he wants to create a nation of two - "Das Reich der zwei" - an escape from the world.
As the fate of the two show - the work is dictated from Campbell's cell in Israel as he faces a war crimes tribunal this escape is a pipe dream.
It also works well as an expose of the sections of post-war American society that were attracted to the Nazi right - a faint echo of Roth's plot against America.
So a lot to think about in quite a brief piece - it is quick to read. But actually more brutal in its view of humanity than Slaughterhouse 5 so not easy. Made into movie too with Nick Nolte - may try and track that down.